Drawer/Timeslider GUI Quirks

if you have one of the timeslider dialogs open and select the other one -> clicking once only closes the open dialog
Add to Virtual Stations is in the scroll div for observation parameters
same units have different x-axis legends in profile plots
closing a virtual station dialog closes the drawer but not the profile plot
chart loading spinner is off-center and its fade does not cover the whole chart

Also I ran into a random crash while making the recording, so that too.

asascience / ott-coops