To delete a Tag:
- In the SIM List, select all SIMs (the header icon should show ).
- On the Actions menu, select 'Add/Remove Tag(s)'.
- To remove a Tag click the 'X' next to it.
- Click Apply
To rename a Tag, filter the SIM List using that Tag. Then select all SIMs in the filtered list, delete the Tag and enter a Tag with the new name.