2000 lines in MapPoint. Every line has a name: "R_" & idstart & "_" & idfinish.
I want show or hide one kind of lines but the solution is remove or add.
This process is too slow.
I've tested all the imaginary ways to hide a shape or a line. No way.
Thanks Jhon Meyer and the anonymous guest for your time.
I will go on in my project and if I know the solution I'll post here.

Thanks everybody!.