As correctly understand translation.
axlUIMenuRegister( "move" '( ("&Align" "aln") ) )
"move" - add new item before "move" command
"aln" - you own registered command
"&Align" - name for new menu item, &A - hotkey
I'm not understand you.
But
nil ==== ("Help" nil (("& JET TOOLS" "createmenu5")))
this not error, this only info message.
For another functions - read API, see examples, work more.