@KB6ENY Hey Jay,
Yes it should work on both mobile and web. I just confirmed on both.
You can enter multiple callsigns separated by a comma (ie: N0WRL, K4AZE, N0APX) then enter the freq, etc etc and then just add the parks (currently you’ll have to enter them one after the other clicking it form the drop down, but this will be updated to be able to be entered by comma as well). Then the ‘TheirPark’ field will show ‘Multiple Parks’. once you log the contact it will create a QSO record for each callsign and add all the parks to each QSO record.
Thanks & 73
Brad K4AZE