Calculated parameter can no longer be set to exposed in V27
In Mechanical it is possible to have a parameter that calculates its value from other parameters and constants, e.g. to calculate a total length that is controlled by multiple parameters instead of one such as can be done with some sheet metal objects.
With mechanical components this calculated parameter could be set to exposed so that it would also show in the BOM. With mechanical blocks it looks like any calculated parameter can no longer be set to exposed to make it show up in the BOM the same way as with mechanical components, nor can it be selected in the BOM manager under parameters.
Is this by design and is the full functionality of mechanical components not yet implemented (if it ever will be) or a bug? I "hope" the latter because if it is the former then it is yet another loss of functionality/usability when moving to a new default.