forall delete_section()
//@code
xopen("$(NEURONHOME)/demo/pyramid.nrn")
mode = 1
pt3dconst(mode)
objref s
s = new Shape()
s.action("dendrite_1[8] s.select()")

dendrite_1[8] s.color(2)

xpanel("Change Length")
xvalue("dendrite_1[8].L", "dendrite_1[8].L", 1)
xcheckbox("Can't change length", &mode, "pt3dconst(mode)")
xpanel()