Labels for a multi-(multi-function)-button wall switch

I bought a ZWave wall switch that looks like this :

Classy eh? EDIT thanks to @Darryl it has 4 independant buttons!

This wall switch responds to 4 actions for each of its buttons :

• single press
• double press
• long press
• release (not covered)

I therefore have 12 functions available (3 press modes and 4 buttons) for this wall switch. ZWave connection is not a problem.

I'd like to provide a way to show my non techie users which button does what when pressed somehow...

I'd use a model from what I have on my home's boiler but adding 12 functions grouped by type will take some place and be messy:

(French column names on the left post-it : "still","blinking")

I am already aware that grouping functionalites is necessary for user remembering, for example

• single press : alarm/security
• double press : multimedia,...

Also, I think I should "keep" button configuration for myself and not tell my users, such as double press.

Here are some actions I am thinking for this particular wall switch:

• turn on alarm system
• SOS (sends me a SMS with "help" when pressed)
• turn on the hifi system and play playlist #1
• turn on the hifi system and play playlist #2 (and so on)
• I'm home!
• go to sleep! (turn off hifi system, lights,...)
• turn on multimedia computer server
• storm! turn off everything!
• turn off hifi system
• misc: free test button
• misc: turn on my computer

Is there a good/easy/simple way to label these buttons and their type of press matching with functionalities?

• My users (wife and children) are non techie but they can read and are not colorblind (I am, but its okay since I design the system)
• I can do anything in my house, and this wall switch will just be glued on the wall
• I suppose pictograms will not need further description (for example music notes for "turn on the hifi system" is enough)

Thank you for your help!