Suggestion: Action when double click on a Kanban task box

[amar]

Presently there is no action on double click on a kanban box , also (depend on size)  it will show less information than a list or task tree or list view ,what could be best action on double click ?

*also single click can mimic 'F2' (same as list view). 

[amar]

Single click = Focus -- good 

Double click = F2