I invite you to test
AEButton plus that allows attaching 4 actions to each button (one click, double click; three click and long click actions). It also contains very useful actions like Toogle BT or Toogle WiFi that you can assign to one of these actions for any of the five buttons of 210. It also contains other nice actions like copy and paste or a task switcher.
The trial version is quite complete and does not nag you much. I am testing it now and if I do not see any problem, I would be happy to pay for activating the full version (not really necessary, except for supporting Alexander Eltsyn who develops the software).
Murat