This is nice, it feels good to use it. Nothing feels extra, all the features are quite polished.
Areas of play could be made, like big rectangles with a tagg added, there could also be pieces to be moved around.
Glad to know you like the tool.
Regarding pieces, do you mean some kind of icons/shapes? Should they have color, text, etc?
I've added an "Area" object based on your suggestion. You can edit the title and resize it using the handle on the bottom right. Do try it out and let me know if it's what you wanted. Happy to further improve the tool based on your feedback.
Sorry for the late answer, yes the area was what I had in mind. It helps me divide the play areas in the game, it's mainly for my own benefit, but it can be quite helpful to make more concrete some ideas (the image you have of the areas is a good example of this). Also, the tags are cool, I use them as tokens (money/power units) or pieces I want to represent. Nice job.