Add project/collection feature

[ghost]

Is your feature request related to a problem? Please describe.

No

Describe the solution you'd like

I would like modeler to have the concept of grouping many project files into a "project" or "collection". This could just be an ascii text file in the home directory that has the absolute paths to the files in the collection. Open the project, and all files within the collection auto-load into Modeler.

Describe alternatives you've considered

None.

Additional context

This concept is common in many advanced text editors. I would like to be able to quickly switch from project to project by referencing a collection by name. This would be extremely handy.

[barmac]

Thank you for your feature request. Can you please name any editors which implement your idea so that we could see what kind of solutions already exist?

[nikku]

As mentioned by @Camunda-ChrisAllen many sophisticated text editors (i.e. Sublime Text / VSCode) implement such a feature.

[nikku]

We do want something like this, however there exists no fixed time frame for when such feature is going to be implemented.

[philippfromme]

Duplicate of #2508.