Making a stacked-text sign using the new layer feature in Carbide Create (version 521+)

Something like that.

As noted, you can instead:

  • convert to curves
  • export to SVG
  • open in a vector editor
  • select each text object’s constituent elements
  • join into a composite path
  • Boolean union
  • export to SVG

Arguably, this sort of thing is better done in a vector editor such as Inkscape or Serif’s Affinity Designer.