How do you make repeats that repeat multiple times?
Use local repeat barlines. On the local repeat close, you can specify how many times.
Attached is what I use to tune my fiddle.
The other way is to use special endings. These work on master repeats whick look better than local repeats.
Here, you either press <s> or click |Insert|Special Ending| to open the dialogue.
You then select which endings will be using that particular bar - could be 1,3 and 5 with 2 and 4 using another one... You choose. If you want, you can also make the special ending object |Print|Never| so that is doesn't show.