Do these repeat signs exist in Dorico yet?

Hey guys, can anyone help?

I’ve attached a an image of what I’m after. Can’t seem to find anything like this, perhaps something not in Dorico 1.0?

No unfortunately we don’t have repeat symbols like that yet - I presume this is some aleatoric music?

No worries, thought that would be the case!

It’s part of a large orchestral score, the whole string section is divisi. with a different cell at different tempi for each player. Creating this lovely shimmering sort of texture from the strings.