You can edit the ldappl3.template file, but you need to be aware that the changes you make are global for all systems, not just one in particular.
Once you make changes you need to go into SLM and "Make available to client" by clicking on the icon, if on LD 9 go to Reporting / Monitoring > Manage Software list, and click on the make available to clients icon
Then it will take an inventory or two of the clients to get the new info, and you should be good.
Below are examples of what you need to to. I would NOT exclude whole drives as you will be doing this for all systems.... See my file server list to see how I did it.
You MUST add the "\" after the folder name or it will not work
Samples of ones that LANDesk adds by default:
ExcludeDir=%ProgramFiles%\COMMON FILES\MICROSOFT SHARED\
Samples of some thart I have had to add for file servers:
And one from a data drive