Have no idea how you can get these. I believe they were being exported to US several years ago, but if interested you will have to do some further research.
Seems to me that you might be better off using something like a Leigh Super Jig that you can mount to a slab of flat material and clamp down to the MFT.
For dovetails, I use a porter cable 4212. It's a simple, sturdy jig. For the $105 I paid for it, no complaints.
For box joints, I much prefer to do them on the table saw with a dado set and incra ibox.
Rudy, welcome to the forum. Our forum members have given some suggested solutions. The CMS is not designed to produce those types of joints. We did have a jig, the VS 600, which was for that purpose but it has been discontinued without a replacement in the US/Canada.