"Hlod cluster need to be rebuilt" Is it possible to control Hlods manually

I set the hlods. there is no problem. but when I continue working on the project again, it asks me to set the hlods again at the slightest change.

I want to set it once and do performance tests in the game. When I will not make any changes in the project, that is, when it is finished, I will recalculate and finalize it.

Some Details
I use Perforce.
I am using Sublevel.
My game is a 3km x 3km congested city.
If I am not mistaken, there are more than 500 buildings.
I have Hlods levels for each region. I added building floor and big objects.
Other small objects are in a different level and cull distance. I also delete the blueprint ones with max draw.