Add extra dimensions as parameters to expose them as options

Add any extra dimension you want available as an option on a furniture under Parameter, then create it and update the furniture.

1. Any additional dimension you want available as an option on a furniture (e.g. column height, column depth, column width, cabinet filler, dummy filler) must first be added under Parameter.

2. Type the parameter name and value, create it, then update the furniture; it then appears as an option.

3. Parameters can also contain formulas such as a sum.