If you do not want to allow users to edit the system entries, you can use the SAP Logon Pad program.
Which files are stored where? The following list shows the files with their
possible storage locations; in the case of multiple possible locations, the
search sequence is shown:
saplogon.ini, sapmsg.ini, saproute.ini:
SAPGUIdirectory
Windows directory
services:
WINNT . system32 . drivers . etc . Services
SMLG Logon Groups
Using logon groups, you can group instances with transaction
(Tools CCMS .>> Configuration >> Logon Groups).
In the example above, four instances are assigned to the logon group
SD, and three instances to the logon group
FI. The message server of the system also has these details within five minutes after the new group definitions are saved. From now
on, you can access these groups using .group selection. in SAP Logon.