hmm as i told you construct2 doesn't support 2 fingers but support double click with mouse also if you want double touch its acceptable with some ticks for example :
you have 2 object (player [with boolean],pin) : events:
on start of layout ---> pin object pinned on player
- if you touch player [false] -->> pin destroy and after (1-2)second create pin on player
if pin is not on screen ---> player boolean = true
if touched player [true] ---> flip player
so try this if it worked or not , if not upload the capx let us see what the problem i think this shouldn't have any problem ... if it has any problem i think it will be fixed because it isn't that much hard ( i think)