Hi @barbara.werthmueller,
Thank you for reaching out.
Unfortunately, it is currently not possible to give separate visibility rights to different questions in the assessment forms.
I know you are already familiar with our Ideation area, so I would again recommend sharing your suggestion here to give them more visibility!
A workaround for this could be to create an additional section in the employee's profile with attributes that reflect the question for each assessment circle. This section could then be disabled for the employee and only a manager will be able to edit it. More details you can find here: Creating Custom Sections and Attributes
Excited if other community members come up with other ideas/workarounds on that!
Best regards
Marc