Dear player,
in our mobile version we currently have no "trade" button on the village screen, however, it will be considered for one of our later versions. We will also deliberate on cancelling orders/offers, as right now it is not present neither in our web version, nor in our mobile one.
Regarding the visibility of future orders:
In our web version you can see future orders only if there are no active offers available on the market. This functionality will also be implemented for mobile with one of our later versions.