I like using point and figure charts for trading forex, too. I am using an indicator for MT4 to draw the charts.
It's possible to change the box size, reversal, using high/low or close prices, and has automatic 45 degree trendlines.
I am wondering why point and figure isn't very popular in forex trading. In my opinion, too many are just following fancy, lagging indicators instead of looking at price action.
Here are some screenshots. Both EURUSD and reversal set to 3. The one with box size 5 is based on close prices, the other one (100 pips box size) on high and low values.
// Edit: Sorry, screenshots are a little bit too big. I thought they maybe would be scaled down. Hope you don't mind. You can get the
Point and Figure MT4 indicator here.