Hi, I would like to suggest a possible enhancement for fitmap that would be useful in cryoEM workflows - optionally searching both the original map, and a z-flipped copy. In cryoEM, we often obtain initial reconstructions using ab initio reconstruction, which may converge on either the correct or inverted hands, and at low resolution, it is sometimes difficult to distinguish which (if any) is a correct solution - often, unambiguous fit of an atomic model is helpful to confirm that one has a correct solution. Fitmap with global search (e.g. fitmap #1 in #2 search 100 radius 5) is useful to get an initial fit list. It would therefore be convenient if fitmap had an option to automatically test the fit of a model vs both the selected map and a z-flipped copy. We do this now by pre-flipping the map and doing two searches (one against each copy), but when all the classes are loaded from a classification job this can become a bit unwieldy, in terms of keeping track of which map ID corresponds to the flipped copy of which map. Cheers Oli