hI, From https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-WD1/Part01/components/hanim.html#HAnimMotion SFInt32 [in,out] loa -1 [-1,4] What does "loa" mean ? Fieldnames in X3D are often english words, but the dictionary leo.org has no results for "loa" 8-( so long MUFTI