Openplotter 2 with touchscreen

[mgrouch]

Hello,

I’m not sure if that general issue with touchscreen support in Linux or OpenCPN issue
on Linux. I can’t make openplotter even decently usable with a touchscreen.
No 2 finger zoom. I took same screen (it supports multitouch, argonaut m7 gen2)
and it worked with windows 10. I could zoom with 2 fingers, etc. 
with raspberry pi 4 and openplotter 2 I can’t even measure distance between points
It keeps adding more and more points with no way to remove them. 
I guess because there is no double click emulation?
Anything user input related from a touch screen is mostly unusable. 
I can’t use search plugin to search a chart because there is no way to type. 
Should be there a on-screen keyboard?
View only functions seem work. But the point of having a touch screen 
should be ability to do some user interactions. For me all I could do on a touch screen is move 
mouse pointer around and do right clicks. 
What am I missing in set up? Or I should just look into windows 10
with opencpn on it for a cockpit touchscreen?

Thanks,
—MG