There is no magic command to do this.
Chalk up another one for the Wish List, Djordje.
The only way to do it is to copy/paste the individual text entities into a single one. A very tedious process. I've been there - done that... Not fun.
I thought I read somewhere that the DWG translation in AC8.1 now recognizes and correctly translates AutoCAD mtext entities?!
Hmm, maybe it's just wishful thinking.
David Larrew, AIA, GDLA, GSRC
Architectural Technology Specialist
a r c h i S O L U T I O N S
WIN7-10/ OSX 10.15.7
AC 5.1-25 USA