Allow viewer user to adjust dashboard to his liking without option of saving it

Hello, I am trying to figure out a solution for following problem:

I have a user with viewer role and I want him to be albe to adjust dashboard to his liking (mostly with resizing windows) and he must not be able to save it. I have found something which could be the slution here

However, there is mentioned that I should edit the Grafana configuration file. Therefore, I assume that I would allow every viewer to edit every dashboard they have access to without saving. Preferably, this should not be possible, I would like if the user would be albe to edit (and not save) just one predefined dashboard.

I do not know whether it would be possible but could RBAC be helpful here? Or is there some other solution which would be better suited for my usecase.

Thank you very much!