I've read some online advice about this, but perhaps my question is more complex. I want to see through text, so a flag photo shows up inside of it. But below that is another photo (suitcase). So the text with the flag photo inside is on top of a suitcase image. So, how to do? Mucho many thanks in advance!
In this case it might be easiet to convert the text to outlines (select the frame not the text itself, so you get a "compund path"), then cut the image and select the type you converted, paste into.