Hi,
There's just one (tiny) thing on my wish list: when asking for higher or lower altitude (H or L key), sometimes, ATC replies "not possible at this time". But asking the same question 2 seconds later will result in a "Roger, descend or climb to ..." So it is just a random answer. When should the pilots, who need to climb/descend repeat their request? Wouldn't it be great it ATC could note your request and give the autorisation to climb or descend when possible (a few minutes later)?
Jos
EBBR