Tradestation Radar screen time intervals are changed by clicking on the cell you want to change and then selecting a time frame from the Time frame drop-down menu.
Please see video below.
About - Squeeze Radar
https://intercom.help/simpler-trading/en/articles/3418909
Squeeze Radar - How to read the Status, Signal and Bars columns
https://intercom.help/simpler-trading/en/articles/3727436