You shouldn’t need to manually enter any URLs (see questions above how you get to images or plates). If you want to modify the URL:
It always starts with:
https://fractal-bvc.mls.uzh.ch/vizarr/?source=
or on the beta server: https://fractal-bvc.mls.uzh.ch/vizarr/?source=
Then this URL pointing to your project share (project share names can vary):
https://fractal-bvc.mls.uzh.ch/vizarr/data/shares/prbvc.biovision.uzh/
Then the location of your image: e.g. users/joluet/demo_output/20200812-CardiomyocyteDifferentiation14-Cycle1.zarr/B/03/0