Hi, is there a way to disable the ability to change periodicity on a chart by typing numbers? At least once a month while taking pre market notes I type an ES price thinking I have my spreadsheet selected but my chart on the other screen is selected, it ends up trying to input an ES price into the PnF periodicity and IRT ends up locking up. This morning it locked up 5 mins prior to open, I gave it a few mins to recover and no luck, had to end process, and restart, took another 5 mins to fully open and back fill data from the open and all of my homework level reference lines I created earlier this morning were lost and I had to spend 30 mins redoing all of the work after the market opened so hoping there is a solution to prevent this from inadvertently happening.

Thanks