please try to contact MDP.Support at gmail dotcom ( mdp dot support at gmail dot com) they may help you ..they have good afl developers.
Be very clear what you want ..and discuss in detail before you make any payment.
when it comes to buttons etc icons.please ask is it possible etc etc...few features are not allowed by amibroker for third party developers.
all the best ...
disclosure: i have data feeds from this provider.(market data provider )
suba