The lack that I see now and before is that that's built-in offset command... When I offset inside through point for example drawn inside point "P", offset LWPOLYLINE may pass and may not pass through and in that case usually it breaks to a few more smaller LWPOLYLINES...
So now problem consist in solving this task, upon solving and applying in my lastly posted code, solution should be successfuly created...
Any ideas are very welcomed...
Thanks for reading, M.R.