Can I define onClick action on any layer inside a active composition panel by extendscript?

for example:
A composition has two layers named firstLayer and secondLayer. When I double click on composition from project panel then it will open that composition in composition panel and that composition will show two layers in it. So it there any way by extendscript to define click action on these layers? Like I can define click action If I create the similar new panel by scriptUi.