Currently, as described in the post linked above, content center families with custom inputs don't have any form of validation or numeric formatting. A user can type in the length as "10", "010", "10.00", etc, with each of these inputs producing a different file name, but all of them being the same part dimensionally. While this can be worked around using helper columns with rounding functions to set the filename, it is a just that - a workaround, and an overly complicated one at that.
Just like table column formatting exists in parts lists tables, it should also exist in Content Center Family tables.
At a bare minimum, this would add checkboxes for trimming/allowing leading and trailing zeros.
If Autodesk wanted to take this even further, this could be implemented as something similar to Excel custom formatting, where users could go beyond just trimming or not trimming leading or trailing zeros, and set an exact format for the input to follow (i.e. to force leading and trailing zeros, so that an input like "5" becomes "05.00", for example).
The advantages here are:
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