In Joist to Beam and Col. (164), you can now again define the angle position numberidentifier that is assigned to all similar parts, assemblies, cast units, or reinforcement

Position number consists of a prefix, separator, and running number. The prefix is part of the position number, identifying a numbering series. The running number is part of the position number, and is the assigned number in the numbering series, based on the start number. The separator is an optional character, such as a slash, that separates the prefix and the running number.

In Tekla Structures, the position numbers assigned in the numbering are shown in marks and templates, for example.

In the US, the term piece mark or ship mark is used to refer to a position number.

, material and name on the Stabilizer tab.