Double tap to select feature

Add the option to double tap to select a feature from the menu instead of just pressing the button

And just in general make it so you can confirm more things by double tapping

Merged "Tap screen for choice" #142

Hello, My natural urge after 2 months is still to select my mode then tap the screen to confirm. This would give you two options, choose mode then either tap screen to select or click the button. I would prefer taking screen. it does make it feel more smart