If the SERVER lines in the files you wish to combine are identical and the hostid fields in each SERVER line match between files, you can combine them.
If the SERVER lines are not identical, then you must keep the license files separate.
License files are set up to run on different server nodes and so have different hostids.
One file is set up for single server (has only one SERVER line); the other is set up for redundant servers (has multiple SERVER lines).
If the license files are not compatible, you must keep them separate and run separate lmgrd daemons for each license server.
If your license files are compatible, then you may combine license files and run a single lmgrd daemon.