Additional display files in a folder outside of the project?

Good day!
Opened the project, I want to open one file folder, which is located outside of the project. Possible-is it?

Ideally, if the file folder is displayed as a first draft, but after him:
Thank you!
June 7th 19 at 15:45
1 answer
June 7th 19 at 15:47
Using external libs can be connected.

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