Acronis True Image - tidying up the list of backup locations

Over years of using Acronis True Image I have created image files in several folders and with different file names. As a result, my "Backup location" lists many file name formats that I no longer use (please see the screenshot).

Can anyone tell me how to tidy up that list? I cannot see any option in ATI and I cannot find where it is held on disk or in the Registry.

the only way i can think is to re install it , if you only have a couple of back ups then when you uninstall dont save the acronis info and settings, hopefully when you reinstall it it will have a clean memory so to speak.
then browse via acronis to your current backup folder when setting up the backups to continue your incremental backups if you have a schedule.

or something like that