It will be helpfull if each opened document can handle its own test text that are used to check expression. I had creating 5 different .graphrex documents but I want to have for each of them its own group of test texts.
This is such a great suggestion that we already have it on our to-do list! Actually, other users have also requested it. It was already tentatively scheduled for release 0.6 but I think we will commit to definitely having it in there, based on your additional input.