Leslie ~ It can be done, but it is more complicated.
First use a bracket, [ then enclose the words, "db_photo", without quotation marks] then put the 5 or 6 numbers, then enclose with brackets again /db_photo. Then preview your message to make sure.
Of course, you have to search for the iris, and then write down the numbers. If you have another device handy, like a tablet or IPad, you can copy the numbers from there.