Also, if you are charting on TOS and executing with IBKR....Why not use a charting platform that connects to IB and cut out TOS?
(I don't know anything about Rithmic, I hear AMP is good though)
I have programmed dozens of custom indicators and scripts to make TOS a quant traders dream come true. Have a look.
Here is another one. This is a chart in EXCEL using the IB TWS API (and custom VBA scripts)