If Show If Field is a Choice field, the Show If Field Value(s) is a comma-separated list of Choice values.

For example:

Show If Field Value(s)	Description
1	Field is visible if the Show If Field has a choice value of 1 selected.
1,2	Field is visible if the Show If Field has a choice value of 1 or 2 selected.
	Field is visible if the Show If Field has the empty choice selected.
,1	Field is visible if the Show If Field has the empty choice selected or a choice value of 1 selected.
,1,2	Field is visible if the Show If Field has the empty choice selected or a choice value of 1 or 2 selected.

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