# Experiment/Collection types

**URL:** <https://community.openbis.ch/t/experiment-collection-types/464>\
**Category:** ELN, LIMS, Data management functionalities\
**Created:** [24 April 2025 07:54 UTC](https://community.openbis.ch/t/experiment-collection-types/464 "2025-04-24T07:54:37Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ThorstenPSI](https://dub1.discourse-cdn.com/flex013/user_avatar/community.openbis.ch/thorstenpsi/32/102_2.png) [@ThorstenPSI](https://community.openbis.ch/u/ThorstenPSI)\
**Post date:** [24 April 2025 07:54 UTC](https://community.openbis.ch/t/experiment-collection-types/464/1 "2025-04-24T07:54:38Z")

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Dear all, I’m about to clean our openBIS installation, which is a multi-instance installation. For this, I was trying to hide items from the Experments/Collection types drop down menu that appears when a new experiement is created. I’m lost on how to do this. I see the objects in the Admin UI, but in the settings they appear not in the objects list, so I can’t disable them for our group.

Any help appreciated,  
Best, Thorsten

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**Author:** ![cbarillari](https://dub1.discourse-cdn.com/flex013/user_avatar/community.openbis.ch/cbarillari/32/10_2.png) [@cbarillari](https://community.openbis.ch/u/cbarillari)\
**Post date:** [25 April 2025 13:07 UTC](https://community.openbis.ch/t/experiment-collection-types/464/2 "2025-04-25T13:07:45Z")

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Hi Thorsten,

you need to edit the settings of the group(s) you belong to and disable “show in dropdowns” for the object types you do not want to see in the group: [Multi Group Set Up — Python documentation](https://openbis.readthedocs.io/en/20.10.x/user-documentation/general-admin-users/admins-documentation/multi-group-set-up.html)

If this does not work as expected, please send a ticket to our helpdesk and we will take a look.

Caterina