Introducing apps that can display two screens on the left and right in the Finder on Mac

Finderイメージ
Updated : Dec 12, 2021

The Finder on the Mac is a basic application for file operations, but surprisingly there are many opportunities to display it on two screens.

Copy files, compare the contents of two folders, and more.

On this page, I will introduce apps that are supposed to be displayed on two screens from the beginning.

Advantages and disadvantages depending on the types of apps

On this page, I will introduce two types.

  • a) App type different from Finder
  • b) Finder extension type

The advantages and disadvantages of each and the specific app names are as follows.

TypeAdvantagesDisadvantagesSpecific app name
a)・It is unlikely that
the Mac will become
unstable as in b).
・You need to learn
how to use the app
Command One
・PathFinder
b)・You can extend
the functions
of the familiar Finder
・It may become unusable
due to the version upgrade
of macOS.
・Mac may be unstable
XtraFinder
TotalFinder
Mr. Otter
Mr. Otter

On this page, I will introduce how to use the following three apps.

You can jump to the introduction of each app by clicking the link below.

① Commander One (App type different from Finder)

You can jump to each item from the following list.

Advantages / Disadvantages

<meta charset="utf-8">Mr. Otter
Mr. Otter

Please read the common advantages and disadvantages of “App type different from Finder” because I wrote it earlier!

The following are the advantages and disadvantages unique to this app.

AdvantagesDisadvantages
・Basic functions can be used
even in the free version
(The paid version is mainly
linked with cloud services)
・There is a sense of security
as it is distributed on the App Store
・Since the app has a short history,
there is little information
on the net.

How to get

You can download it from Apple’s App store.

‎Commander One - file manager
‎A high level of file management can be reached with the updated version of Commander One v3.0. The app is now fully compatible with macOS Big Sur, offers more ...

Settings at first startup

Only at the first startup, there are some settings due to the security of macOS.

The following describes the setting procedure.

▶ Double-click “Commander One.app” in the “Applications” folder of the Finder to start it.

Mac Finder "Commander One"

▶ When the folder selection screen is displayed as shown in the screen below, click the part surrounded by red to select the location.

Please select a folder to grant Commander One full permissions.

We recommend selecting “(your SSD / HDD name)” for the best efficiency.

Mac "Commander One"
Click to enlarge

▶ In the screen below, “Macintosh SSD” is selected as a sample.

After selecting, click the “Select” button at the bottom right.

Mac "Commander One"
Click to enlarge

▶ The operation will be a little complicated from here, so I will explain in detail.

When the “Grant Full Disk Access” screen appears as shown below, set the “Commander One” to give disk access rights.

Click the “Open System Preferences” button in red on the screen below.

Mac "Commander One"
Click to enlarge

▶When “Security & Privacy” is displayed as shown in the screen below, ① make sure that “Privacy” is selected at the top, and then ② click the locked lock icon at the bottom left.

Click to enlarge

▶ When the screen for entering Touch ID and password appears as shown in the screen below, perform the necessary processing to unlock it.

Click to enlarge

▶ When the settings screen can be changed as shown in the screen below, make sure that “Commander One.app” is in the list on the right and has a check mark. If it is not in the list, add it with the + button.

Mac "System Preferences"
Click to enlarge

▶ After changing the settings, when the message “Commander One will not have full disk access until it is quit” is displayed as shown in the figure below, click the “Quit & Reopen” button.

Mac "System Preferences"
Click to enlarge

▶ After “Commander One” is restarted, ① click the lock icon at the bottom left of “Security & Privacy” to return it to the locked state, and then ② click the red x button at the top left to close it.

Mac "System Preferences"
Click to enlarge

This is the end of the explanation, “Settings at first startup”.

Next, I will explain “How to use”.

How to use

▶ If “Commander One” is not running, double-click “Commander One.app” in the “Applications” folder of the Finder to start it.

Mac Finder "Commander One"

▶ On the startup screen of “Commander One”, you can open separate folders on the left and right as shown below.

Of course, you can move or copy files and folders from either one to the other by dragging and dropping.

Mac "Commander One"
Click to enlarge

▶ In the screen below, I tried to make the icon view on the left and the list view on the right.

Now, try dragging and dropping the selected image file on the left to the left.

Mac "Commander One"
Click to enlarge

▶ When the confirmation screen appears as shown in the screen below, click the “OK” button.

Mac "Commander One"

▶ The file has been moved as shown in the screen below.

Mac "Commander One"
Click to enlarge

▶ In the above demonstration, you moved only one file, but you can select multiple files with the space key on your keyboard.

In the screen below, with multiple files selected, the background color of the selected file name has changed.

Mac "Commander One"
Click to enlarge

▶ Also, at the bottom of the “Commander One” screen, the actions assigned to the function keys are displayed.

In the previous demonstration, the file was “moved” by dragging and dropping, but if you click the “Copy” button or press the function key, it will be a file copy.

Mac "Commander One"
Click to enlarge

This is the end of the explanation, “① Commander One”.

② XtraFinder (Finder extension type)

You can jump to each item from the following list.

Advantages / Disadvantages

<meta charset="utf-8">Mr. Otter
Mr. Otter

Please read the common advantages and disadvantages of “Finder extension type” because I wrote it earlier!

  • Advabtages and disadvantages depending on the types of apps

The following are the advantages and disadvantages unique to this app.

AdvantagesDisadvantages
・Historical
・Since there are many users,
there is also a lot of information
on the net.
・It used to be free,
but now there is only a paid version

How to get

https://www.trankynam.com/xtrafinder/

How to use

Since it is a popular app, if you search the internet for “How to use Xtrafinder”, you will find many sites that explain how to use it, so please take a look there.

Here, paste the link displayed at the top of the search results.

Completely Trick Out Finder on Your Mac with XtraFinder
For the most part, Finder has had the same basic functionality through the various releases of OS X. But Apple's lack of interest in adding new bells and whistl...

③ TotalFinder (Finder extension type)

You can jump to each item from the following list.

Advantages / Disadvantages

<meta charset="utf-8">Mr. Otter
Mr. Otter

Please read the common advantages and disadvantages of “Finder extension type” because I wrote it earlier!

The following are the advantages and disadvantages unique to this app.

メリットデメリット
・Historical
・Since there are many users,
there is also a lot of information
on the net.
・Only a paid version

How to get

https://totalfinder.binaryage.com/

How to use

It is the second most popular software after “XtraFinder” introduced second, so if you search the Internet for “How to use TotalFinder”, you will find many sites that explain how to use it, so please take a look there.

Here, paste the link displayed at the top of the search results.

Conclusion

<meta charset="utf-8">Mr. Otter
Mr. Otter

I’ve written it for a long time, but let’s summarize it at the end.

Which one do you recommend?

Little devil fox
Little devil fox

If you use it privately, “② XtraFinder” is easy to use.

Because it’s an extended type of the Finder, you can learn new features little by little while using the Finder as before.

<meta charset="utf-8">Little devil fox
Little devil fox

If you use it in office or school, “① Command One” is good.

The reason is that if you use the extended type, “② XtraFinder” and “③ TotalFInder”, you will be worried about stability and security because you will modify macOS.

<meta charset="utf-8">Little devil fox
Little devil fox

However, if you’re a Mac enthusiast who has a good backup and can handle problems quickly, I think you should put what you want in your company machine.

Spa cat
Spa cat

This is the end of this article.

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