Yes, you can with pruning shears or something similar. But it doesn't give such a nice cut and you only have 2 end pieces. This means that the gliders could fall out, depending on the situation.

Nope - you can simply attach it with a sewn-in double hem. So just don't sew horizontally, just horizontal lines... haha

Galaxus has to answer that.

Hello. In fact, it is you who defines the spacing of the supports... personally, I have fixed a support every 50 cm and that is more than enough

Sorry, I passed the product on unopened and therefore don't know how big the screws were.

Yes, you can cut it in desired length and used less mounts respectively.

I found a connecting piece in the Gardinia products that actually does not belong to the Flexline product line, but to the Perfectline line. I was able to connect 2 Flexline rails of 350m each with this. I ordered this from Jemoli at the time. But I can no longer find it there. At Gardinia.de it can be found under Perfectline accessories, article number: 32486.

I think they glide really well