A little background.....
When contesting, I would like that my contest QSO's from N1MM+ would simultaneously be recorded in both my contest log on N1MM+ and also in my aggregated station log on Log4OM v2. This is possible using the UDP facilities in each program.
But there is a glitch....
N1MM+ & Log4OM don't play nice when each wants to control the CAT on my FTdx5000.
So in order to link both logs, you must disable the CAT in Log4OM. Then, when the contest is over and you wish to use Log4OM for "normal" logging, you must go back and turn the CAT facility on again. Sort of a PITA!
But behold, there is a wonderful solution.....
You can have multiple configurations of Log4OM on your desktop!
Here is how.....
In Log4OM v2
1) Select menu Settings > Program Configuration
2) In the resulting dialog screen, select User Configuration
3) Then click the "Clone current config" icon. (See image below) This will produce a new duplicate of your original configuration.

4) Click the dropdown arrow (right of Configuation ID box) and select the new ID. The "Description" box will be empty. Fill it in with a name for this ID (I used "N1MM".)
5) Under the Description box, click the "Make Configuration Active" icon (Green check mark).
6) On the menu on the left side of the page, click CAT interface.
7) Go to page 159 of the Log4OM user manual. Perform ONLY steps 3, 4, and 5 on that page.
8) On the menu on the left side of the page, click User Configuration.
9) Click the "Create link" icon (far right icon under Description box). In the resulting "Browse" dialog, select "Desktop" and click OK.
10) At the top menu on this page, click Save and apply (small green check).
11) Exit Log4OM.
12) Launch N1MM+
13) Go to page 159 of the Log4OM user manual. Perform steps 1 and 2 on that page.
14) Exit N1MM+
You now will have two Log4OM 2 icons on your desktop.....
The original icon will launch your standard configuration of Log4OM for your normal day-to-day logging.
The new icon will launch the configuration which will accept QSO's from N1MM without CAT interference. No more need to remember to go in and fiddle with the configuration menu before a contest weekend.