tempprally tourn off summetr

I need tempprally tourn off summetry how to make it?

Is it way to tourn off symetry, cahnge geometry and the tourn it on and continue to work?

I cannot understand the system of symmetry in Nvil. May be some bode give me link to tutorial, or axplain, how it works?

Once you turn it off, you can do transformation operations with out losing symmetry. But if you do any operations that changes the topology, the symmetry will get lost.

There are some related tools
Geometry > Calculate Symmetry Topologically.
Geometry > ReSymmtry.

Thank you!
I made symmetry with - symmetry remove negative. Then I want to tourn it off I use icon (symmetry ennabled)in the top of window.

Do not understand why command that creates symmetry names - symmetry remove negative, may be I do not know something?

Also I still have no Idea how these commands work:
Geometry > Calculate Symmetry Topologically.
Geometry > ReSymmtry.

Also there is comman Cal symmetry, in point mode. Also have no idea how it wprks