If you want to work with Creo text, create a sketch with the text first. Then you can create a second sketch and use the Project, Loop option to convert the text into sketch entities. Now you can draw in the supports where ever you need them and trim everything up nicely. Finish it off with an extruded cut and you're in business.
The nice thing about text is it is tessellated and not splines, so you're vendor should be able to laser cut them without any issues.
