Press F6 to display current studies.
Let's say you've added volume and a moving average to your chart.
Type a name for your study collection (e.g. Vol & 20 MA) into the Study Collections List box then Save All.
To apply this collection of studies to another chart select it from the main Analysis menu where it should now be listed under Studies.
(Another quick way is simply to change the instrument displayed in the current chart by clicking on the blue bar at the top of the window and typing in a new instrument name e.g IBM. You have to have the instrument already in your list of intraday charts for this to work. If you haven't then you'll need to File >> Open Intraday Chart first. I imagine this isn't what you were after, but I sometimes find it useful on the fly.)