Player platform:

Windows, 64 bits continuous build of the Player.

Describe the issue in detail and how to reproduce it:

In the Player, while the Playtest Mode is active, some additional actions can be done, like in the original RPG_RT but with more features (Open a debug scene, walk through walls, interrupt current event, show instantly messages...). One difference between the Player and the RPG_RT that can be very annoying is that the Debug Scene cannot be opened while a message is displayed unlike the RPG_RT, which can be very annoying if you want to debug and that your game/section of your game heavily relies on text (e.g. visual novel). Allowing it to be opened in that case like in the RPG_RT could thus be useful, though you may have to take into account potential conflicts if opening the menu while a text is displayed can break things.