Why not work set parameter pipe section

[AmolShah]

I think this has been discussed here

Replacing 0.000m² value with Null

Hello all, I’m looking to search a category of ‘Rooms’, then based around the parameter of ‘Required Area’, filter out the values hitting ‘zero’ (0.000m²) and replace those values with a non-value, or null value. The ‘Required Area’ is a calculated value that is based off what is real in the model vs. what is required by the employer. It has an added complexity of being a Calculated Value, which by default until we input ‘Employers Required Area’ is ‘null’, but as soon as you put anything in i…

I could not set the parameter back to null/default value [Project Parameter is Number Type].
Can you chime in @solamour @john_pierson?