You can also accomplish this using only the standard Find/Change function.
1. USe the Copy Special to load the required Conditional Text Setting already applied somewhere.
2. Use Find to look for the Paragraph Tag.
3. Use the Change > By Pasting to apply the conditional setting to that paragraph.
4. Do this as a Change All to apply to all the desireed paratags and you can specify the scope to be the book or document (or selection).