Hi ChimeraX team, I'm running into unexpected behavior when using the build tool. Here's what I'm doing: - open map --> model #1 - open PDB --> model #2 - fit #2 in #1 (the PDB moves by ~20 Å at this step) - cofr centerOfView showPivot true - move the view around so that the pivot axes intersect where I want to place a new atom - build start atom #2 expected result: a new H atom is created exactly at the center of view (where the pivot axes intersect) actual result: the new H atom is created some distance away; I think the vector from where the new H atom is built to the cofr is the same vector as the PDB model was displaced by the fitting into the map (my second step, above), but I haven't checked that carefully. Is this what is expected? It confused me :) Is there a command I can use to move the atom to the correct location after it's been created? Interestingly, if I add a H atom into a new model, then it appears where I expect it, at the cofr: - build start atom "custom built" This is with 1.2.5 (2021-05-24) Cheers, Alexis