So just for clarification it is ok for a team to use one player 4 times in the heads up matches. I only ask as it is something that may happen, and I feel that it is better that it is known by all participants that it is/is not allowed beforehand to avoid any confusion later.
That is correct, although depending on how many dealers we have for this, if a match is ready to go, a captain may have to select an "available" player.
so what your saying is each team member plays at least once (4 heads-up matches played) then it"s up to the captain to decide who plays the other 3
That is correct. In previous Euro/World Team events, the captain could select whoever they wanted to play the heads up games. In this, we are stating that every player must play at least one, as for the other three matches, that is down to the captain to decide. (And it"s the captains choice who plays which team)