keep helpLines and make polyline to std linetype

 From:  BlackBird
10462.1 
Hi Michael,

is it possible to keep the help/constructionlines visible after the tool has finished to use them for the next worlstep and delete them on a button/keypress or switch between KEEP and DELETE after a tool has finished?
sometimes i build some helplines and have to redoo this steps over and over. i realy love the intuitive and easy way to drag helplines.

And is it possible to change the standard linetype from a single line to a polyline? because i never use single lines. if i need one i hit enter after the first segment in polyline and i also have a single line.

And will there be some kind of BLOCK feature and linetype feature in the future?