Hi, so there's no actual snap function
But you can puta subobject or a point exactly where you need it to be.
By putting values of it's coordinates.
r for Right/Left
f for forward and backward
u for altitude
Theres is 2 types of flipping.
#1 is a full flip: which flips the whole tris of an object around it's center
#2 swap sides: which reverse the coordinates of its point's
They may look the same but they mighty be used in different cases
I see you are trying to place the steering rack in place. So I'd suggest doing the following :
Placing the
Subobject coordinates at 0 for all axis
Then manually moving it's points to where it should be on the built side of drive
Then from the subobject menu > flip function : set to swap side
It should work well.
For further details of the overall functions and navigation in lfse yiu can take a look at the lfs editor manual
https://en.lfsmanual.net/wiki/Main_Page