I can't see anything about clearing the data in a scan list - only how to turn on and off.
Top Line>Advanced: Make sure you have "Advanced" features #1, #2, and #3, turned on (checked).
I am on a new computer, so I just installed EZScan Software so I can elaborate on my answer. I am in the process of importing a medium sized TRS Simulcast System. I will import all Sites and TGs. I am at the place in the process where I am asked to select the one, or more, Scanlists to import the channels into. I quote the program: " ...All imported channels will be members of the selected scanlists ...". I deselect ALL Scanlists (NO BOXES CHECKED) as MY option.
The program will import the Channels into the "Unassigned Scanlist" (The one they don't tell you about).
I now select " ... Import Selected Channels ...", at the lower right of the " ... Import Selected Channels ... " screen.
The process stopped, waiting for me to select " ... Import Options ... ". I make my selections and click OK.
Now I click on " ... Import Channels ... " I imported 1 TRS, 17 Sites, and 302 TGs.
Under " ... Import Complete ... ", I click OK.
Back at the Library Import screen, I see the different Categories of TGs that were imported. I leave this window alone. It is very difficult to remember if you turn off TGs by Category. Such forgetfulness will likely result in a future post to RR Forums speculating that ones scanner is not working correctly.
Now we will get the "meat" of my response. Down at the bottom, I click on the " ... Scanlists ... " Tab. I see 150 numbered Scanlists, and 50 more pre-named Scanlists. If I click on each one I will find them ALL empty of TGs. Where is my import? It is in the " ... Unassigned Objects ... " Scanlist.
Go back to Scanlist 001 and scroll UP! Click on " ... Unassigned Objects ...". SCHAZAM!!!
All our TGs! I promise myself NEVER to DELETE any of them. Deleted, they must be imported again to retrieve them.
I highlight the first 10. Over in the right column. I LEFT CLICK anywhere in the highlighted portion. A Pop-Up window appears. Under " ... SEL ... ", I check " ... Scanlist 011 ... ".
Easy to forget to click on " ... Set .. "
Schazam!!! They are no longer in the Unassigned Objects Scanlist because we just assigned them to Scanlist 11. Back up to the uper left, and click on Scanlist 11. There are the selected TGs.
Want to clear Scanlist 11? You are already at the correct screen. Highlight all 10 rows. Over in the right column. LEFT CLICK anywhere in the highlighted portion. De-select the black box next to " ... Scanlist 011 ... ". Again, click on " ... Set ... ".
Now Scanlist 11 is empty and awaits your new selections from the Unassigned Objects Scanlist.
Go back to the Unassigned Objects Scanlist. The ten TGs are back, ready to be assigned sometime in the future if you change your mind. Make a new selection of TGs to assign to Scanlist 11 (left for the student's exercise}.
When you are sucessful, you will have removed one group of TGs from Scanlist 11, and re-populated Scanlist 11 with your new choices.
And MOST IMPORTANTLY, you will have DELETED NOTHING!!!