Unfortunately, we have already started development for our next release, so any system changes such as your suggestion about marking scripts would not be available for a few months.
Are you aware of the favorites feature? You can mark a script as a favorite (i.e. bookmark it), so that it will be easy to use again. To access this, the first time you select a script, when you get to the run script screen (with the name + script notes), press the menu button, and you will be able to mark the script as a favorite.
Once it is a favorite, then the next time you want to run the script, press the menu button in the script selection screen, and you can choose from just the favorite scripts.
I know this is not a perfect solution, but it may help.
Moving forward, we are looking to update the Android app this month, including the ability to search for scripts.