Multiple lines break at the same time is that possiblehelp

In theory....yes.We need more detail though and an image would help too.  Words tend to fail what an image can convey.

Well????????????????????  We're waiting.

Perhaps one of these will do what you're after:
 
http://cadtips.cadalyst.com/linear-objects/break-multiple-lines
 
http://forums.autodesk.com/t5/Visual-LISP-AutoLISP-and-General/breaks-selected-line/td-p/1112559
 
and another:
http://cadtips.cadalyst.com/content/tip-2284-break-all-selected-objectsKent Cooper2013-12-18 15:28:37

If you are looking for breaking lines at all intersections, you can use the tip:http://www.cadforum.cz/cadforum_en/qaID.asp?tip=5632

I need parts drawing on the floor (FLOOR PLOT) these parts must be milled from slabs. These lines must fall within the plates. Useful if you can say breaklines outer platetanks

I'm looking for a routine that will select a line, then that line will be broken at points where it intersect other lines.Or better, to draw a line which will break when intersect with other lines.

Did you test any of the lisp routines previously mentioned?I am pretty sure I have seen a custom lisp routine that will break all lines at intersections with other lines.  I don't recall however if the routines creates a gap or not.

Which lips routines do you mean? Is there a possibility to send me a link?Rgds,Bart

Did you click on any of the links provided by Kent Cooper or Vladimir?  There were four in total.  Yes or no?

Yes I did but it weren't the answers I was searching for. Rgds,Bart

The application that Vladimir gave you the link to will do what you want.  Did you read that there were seven commands in the program?  BreakAll seems like the command you need.You may also find something in this link that will work as well.http://www.cadtutor.net/forum/showthread.php?38603-Break-all-lines-intersect-with-each-other
John Connor2013-12-21 20:17:13