Stock charting with programable indicators

[Synchronicity]

Hi All

I've used Metatrader MT4 for a long time for FX and have coded some indicators that I'd like to use on share trading.

Can anyone tell me of a broker which covers UK and US markets with MT4/5 or recommend a reasonably sophisticated charting platform that I could port my indicators into?

I've tried with ProRealtime but I can't find a way of accessing the timeseries the way I need to.

Many thanks

Michael