I would love the ability to merge two assets into one. I have a common issue that happens where I create an "offline" (as in not a scannable device) like a printer that isn't networked. I add all the relevant details (serial, name, location, comments). Then in the future, the printer becomes networked - Lansweeper picks it up and adds it a second time.
At this point, I would like to be able to check a box next to each and pick "Merge", where I can select which information to keep from each field if they do not match.
A more powerful suggestion would be have LS do this automatically if the serial numbers match. My only fear with this is the lack of control is choosing how information is overwritten.