Inserting The D.C. Mark
The button "Capo inserts" you will find in the Tool bar Tab (category) < form >.
Click into the end of the bar, from which should be jumped at the beginning of the piece, and then click on the D.C. in the toolbar.
D.C Sign is a symbol and is therefore deleted also like other symbols.
During MIDI-playback jumps and repetitions are taken into account!