Q1: How can I modify the histogram (e.g. on EM images)?
See howto: OMERO histogram
Q2: How can I search for data of a specifics user?
See howto: OMERO search
Q3: How can I share images between different groups without duplicating the data completely?
See howto: OMERO sharing
Q4: I'm a group owner, how can I modify the users in my group?
See howto: OMERO group owner
Q5: How can I upload images into OMERO?
See howto:
Omero and Omero.figure Tips & Tricks (see website university Côte d'Azur, Sophie Abélanet)