Especially when downloading presets from the cloud it may not be clear that they require (or at least expect) an expression pedal to be used for certain blocks/items (such as splitters). It would nice if there were some visible indication on the grid when an item has had a parameter assigned to an expression pedal. This would make it readily apparent so that the assignment could be removed to achieve the desired sound, or to immediately know that a pedal can be used to alter various blocks within the setup without having to dive into the details of every block to see if an assignment has been made.
2 (bad) examples of possible solutions accounting for the fact that both pedals can be assigned to the same block(s). This does not address splitter/mixer or input/output blocks but I assume some sort of indicator can be devised for those as well - even if just a small dot(s), indicating EXP assignment of some kind.