Zoom in on an individual item?

Help! Sorry, if this is covered somewhere, but I couldn't find it if it is. Instead all I've found are what devolve into discussions about destructive vs. non-destructive editing. I don't want to get into that; all I want to do is... I want to double-click on an individual audio item and have it pop up in a new window zoomed in really large. That way I can do very fine editing -- like change the loop points for that item, or eliminate a click out of the audio. Then I want to just close that window, and keep on working. Does anyone know how to do this? Without using an external editor. Please help. -Frustrated PS- was it just a faulty memory on my part, or didn't the last version of Reaper default to this behavior?

You can't do this by default but there is an action to do similar, I shall post it here when I get home, away from a computer right now

Welcome to the forums, donjay. There's an action to do it: "View: Toggle zoom to selected items". Also you can assign a shortcut to this action. Look in Actions > Show action list... Write in Filter the name of the action you're looking for, select the action and click Add... on "Shortcuts for selected action". Choose your shortcut and hit OK.

Toggle back? 

I made a macro that toggled the dock open and shut , this way the item is then full screen (This only applies if you have a docker active obviously)

donjay... from your first post... you are thinking of something that some DAW's do.. [open the wav in a new window] but reaper don't work that way.. unless you do it with an external wav editor [which then becomes that 'other' window] reaper has various ways to zoom in ... and back out. some have been mentioned via various actions... then a fast way to get back out, is dbl clk's on the horizontal and vertical scroll bars... the vertical will cycle through 3 stages... now this might help you: the sws zoom marque tool action and the undo for that [it's own action] I have those in one of my floating toolbars with mag glass icons... so I clk one and drag a marque on the wav and zoom that area to full screen... then when done, clk the other [undo] one and I'm back out.

I've just setup my main track view as I'd like by default for a large overview, then created a screenset and set "auto save when switching screensets" to off, that way I can mess around zooming or whatever I want and just hit the key to reload the screenset and bam, everything's back to normal.

Useable Workaround...for Now 

here is yet another method: I'm very used to using cntrl+ and - in photoshop to zoom in and out... so for me, adding that habit to reaper as one of the zoom keys was a 'natural' I have two custom actions: they are simply zoom in horizontal zoom in vertical and of course the reverse for zoom out... now what is nice is that I can just hold the cntrl key down and then hold the plus or minus [numeric keypad] down and the zooms just keep going ...very fluid and very fast.

I have a mouse modifier to Zoom to selected item when I double click the bottom half of an item.