length/mo_name/att_name/

mo_name is type character, default is -all-
att_name is type character, default is -all-
Returns the memory length of attribute att_name for Mesh Object, mo_name.

EXAMPLES:
cmo/length/mo_tet2/boron
cmo/length/-cmo-/boron
cmo/length/-default-/boron
cmo/length/-cmo-/-all-
cmo/length/mo_tet2/-all-
cmo/length
cmo/length/-all-/-all-
cmo/length/-all-/boron