I also like to add ATR to a 1 minute chart, to try to stop myself from entering too large a position. If you use the standard setting of 14 it takes a significant amount of time for the indicator to catch up with the jump in volatility that usually occurs at the Open. If you change the setting to 1 then you get constant updates. Hover the cursor to judge the current average. Of course position size should really be determined by where the stop is going to go, but having the ATR showing just helps me a bit with a quick reality check.