Recessing text into a model for 3d printing

I’m modeling an Mode Control Panel for a B737-800 cockpit which I intend to print on a 3d printer. I used Extrude in the Fonts tab to make the text 3d but when I try to use the Boolean modifier it isn’t listed under Objects. Apparently it still sees it as text. I’m trying to recess the text into the MCP front plate.

Jerry

Alt c should allow you to convert it to a mesh, and then it can be used with a boolean.