For anyone interested here is a lightweight tool for plotting real-time and historical intraday RV values.
Download: bit.ly/rt-rv
Short video on major features: bit.ly/rt-rv-v
This tool is provided for free for your convenience.
It is excel based and uses Interactive Brokers API for real-time data (follow instructions on download page).
Feel free to download and use it. It works completely independent of any chartaffair subscription.
However, if you happen to have a valid chartaffair premium subscription it will additionally produce up-to-date earnings data through the chartaffair API. The test key included will work for a few days from now.
The VBA code inside is 100% open and accessible and anyone wanting to is invited to modify and repost it (f.e. to add more brokers).