How to do multi file development?

[autoantwort]

Is your feature request related to a problem? Please describe.
I have a .ino file and a header that is included by the .ino file. If I want to open the header I have to right click the ino file tab, click on Reveal in Explorer, a hidden menu opens, then I can select the header. But the new tab has no close button, if I press ⌘ + W to close the tab the whole application closes (or crashes, idk).

Describe the solution you'd like
A normal filesystem view like in VS Code with the normal features it has.

Describe alternatives you've considered
I don't know if there is a good alternative. Maybe create an extension for VS Code instead of reinventing vscode. I have the feeling that this is less work 😅

Additional context
The Application in general feels super slow.
https://user-images.githubusercontent.com/41973254/138597664-5a56c504-1bbf-4b74-abd4-e5e74bb66e55.mp4

[per1234]

Thanks for taking the time to submit an issue @autoantwort.

I have a .ino file and a header that is included by the .ino file. If I want to open the header I have to right click the ino file tab, click on Reveal in Explorer, a hidden menu opens, then I can select the header.

I see we already have a prior issue report about this at #541.

It's best to have only a single issue per subject so we can consolidate all relevant discussion to one place, so I'll go ahead and close this in favor of the other.

If you end up with additional information to share, feel free to comment in the other thread.