This is not a suggestion for add-ons! This is a suggestion for Badspot to include in a future version of Blockland.
Input Event Parameters - By TruceThey'd open up tons of new modding opportunities and clean up the input event list by allowing a single event with a parameter to take the place of many events.
An example showing the changed Events GUI. Note the parameters on the left.

There hasn't been an update to the event system in a long time, and I think this is extremely needed.