I have two suggestions a suggestion. that are alternatives to each other, though not necessarily mutually exclusive.
Adding an option to instead of automatically sandboxing an application, then asking if it should be sandboxed in future. Having the CIS Sandbox intercept the execution of executables, specific to one or more directory hierarchies (e.g. Steam Library, GOG Games, etc.), and request whether the executable should be sandboxed or not to begin with (akin to how real time anti-virus halts execution). Or just not sandbox the executables in the specified tree(s) at all.
Include a escalated or ‘Super’ Game Mode that would inhibit the Sandbox. Perhaps by adding a context menu option to CIS’ existing shell extension (e.g. Do not run in COMODO Sandbox), or a drag and drop mechanism on the COMODO widget?
BTW, regardless, it’d be helpful if there were a game mode button on the COMODO Widget. I know you can access Game mode by accessing the context menu of the widget, but an option to add a permanent button would be nice.
Splitting this one topic into three and adding polls to each, to conform with the Wishlist guidelines.