trading slots

[alibegoa]

Can someone please explain trading slots?
It says 4 free but only the first one is free, the rest I buy with coins? So is there a way that all 4 slots can be free?

[Buntuu]

you can put ( for example) 1000 marble to sell for 40gc. when you chose what to sell and what to ask for it, on first page (before you put it in TO) you can move slider so that you can sell 4x this offer. This, of corse, works only if you have enought stuff you selling for 4 trades. Here you go - 1 slot x 4 trades = 4 slots. next ones comes at price.

This works only on things you prodice, except baskets. those you can sell only 1 at a time