You can edit extensions that you have update rights to.
Do the following:
Open the QMC: https://<QPS server name>/qmc
Select Extensions on the QMC start page or from the Start drop-down menu to display the overview.
Select the extensions that you want to edit.
Click Edit in the action bar.
Edit the properties.
You can also edit the fields under Associated items.
Click Apply in the action bar.
The name of the extension is obtained from the file name of the extension definition file (.qext) in the uploaded zip file and cannot be modified.
The user name of the owner of the extension.
Note: This property is only visible when editing an extension.
Tip: If no tags are available, this property group is empty.
Connected tags are displayed under the text box.
The preview shows a grid of the target resources and the source users who have access to the selected items.
Displays the security rules for the extension.
Successfully updated is displayed at the bottom of the page.