break a ployline into multiple polylines

[aaaaaa13]

Hi,

I have a polyline and I want to break it at multiple points. I used break at point, but this way I can select only one point to break the polyline and I also used explode, but this function turns the polyline into lines and I need them to be polylines.  There is a way to select multiple points to break the polyline?

[BIGAL]

If you look at this its the vertice points so dont use the 1st and last point.

 

(setq plent (entsel "\nPick pline"))
(if plent (setq co-ord (mapcar 'cdr (vl-remove-if-not '(lambda (x) (= (car x) 10)) (entget (car plent))))))
(princ co-ord)