Feature request: Constraint based on if a notification with specific title or content exists

[sudomain]

Developer TODO (don't remove)

• update documentation

I would like to have different actions to occur based on if a notification with a particular title or content exists. This would let users have different sets of controls/key maps for a single app. Specifically, I would use this for Termux and switch between between different sets of keymaps using e.g.
termux-notification --title keymap_mode=$KEYMAP_MODE

This would also let me easily programmatically control active keymaps for other apps