Where is the option to change the height of text-frames in Find and Replace?

Hi,

Can you confirm that you are asking the Find/Change window / Object tab to

1. locate the text frames controled by an object style? (in that case just update the Object Style itself)
2. OR you use the search icon (magnifying glass - see screenshot below) to filter the frames that have a specific size. In that case you can use the same window to set the Change To options with the new size. Change the Auto-sizing drop-down to what you need.

I find the Object Styles for text frames so powerful for this very situation.