Hi @digitaltwist,
Thanks for making this report. Pressing "P" does not separate dimensions for the Position property; it only reveals the Position or X/Y/Z Position properties, depending on whether or not the dimensions are already separated for the layer(s).
By default, the dimensions for Position properties are combined. This can be changed in the Preferences > General by enabling "Default Position Properties to Separated Dimensions". Do you have this preference enabled?
Thank you for any fu
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