Check Box to make additional field available ArcPro Tool Box

[Anonymous User]

Hello what I would like in an ArcPro Tool Box is a checking a box make addition arcpy.GetParameterAsText field visible  that were not visible before checking the box.  Is there a snippets out there please? Thx 

[DanPatterson_Retired]

Why not specify that the parameter can use multivalues

Parameter—ArcPy classes | Documentation 

This can be done in code or through the dialog wizard if you are using custom toolboxes

It will then look like this in the tool dialog