I select all the line elements, filtering, without selecting one - one

[ikhsan.pc]

I select all the line elements, and I want to group or filter those lines so that they don’t become 1 part, because I want to join the line square itself, segitia itself, without selecting one - one

[GavinNicholls]

Try the group curves node in Archilab package. Various threads on the forums reference it if you need more info via search.

[jacob.small]

PolyCurve.ByGroupedCurves should work fine.