Activator and home button double click

[Ale72]

Hi,
I wanted to use a gesture to simulate the double click of the home button to activate the "multitasking dock" (I do not know if it's the right way to name it. English is not my mother tounge )
I looked into the different options in activator (ver. 1.4.6) but I was not able to find the right one.
Any suggestion?
Thanks in advance

 

[Ale72]

Easier than expected.
Solved with the help of a friend.
I just had to assign "activate switcher" to the gesture I wanted.
I didn't know that the "action" I needed to recall the multitasking dock was named "activate switcher".
Grazie Guido