How to remove personalization object key value at user level

Hi,

I did add the UI configuration and other details to personalization object key R_FMDM_MODEL as you can see from screen shot.

I don't have the authorization to change user group but I was able to add details. Now I am not able to remove this assigned values. As user personalization take over the role level when ever I try to test configuration at NWBC at always start with assigned data model MM and entity Material even though I try to test for other Data model or entity. How can I remove this personalization keeping in mind I dont have authorization to change user but was able to add value to personalization.

Hope I made my question clear. Please ask more clarification if you find it vague.

Thanks in advance