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.


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