RJTe Request: Allow a single instance of a project to be open at one time

[yereverluvinuncleber]

RJTe has the option to only open one instance of the program but this does not take into account Projects.

We may want to have several projects open simultaneously and this implies multiple instance of RJTe but we might want to avoid allowing the same project to be open more than once. Making changes to the same file in duplicated projects can cause confusion, better to have an option to not let it occur or - prevent it altogether. I cannot think of a reason why you would want to open the same project more than once. It seems so wrong.

Other IDEs prevent this. For example, opening a second instance of a Visual Basic Project file (vbp) is prevented by the IDE. I think it would be a good idea for RJTe to do the same or at least to have the option.