I solved my own problem -- sorry about the noise. Although the "old" way did not work, I found a new way, which now seems fairly obvious.
First I create a new mailbox (called NewFolder) by clicking the plus sign at the bottom left. I found instructions that said I could then create a second new mailbox within that first new mailbox (folder) by clicking on the first one and again clicking on the plus sign, but the first new mailbox is greyed out in the pop-up menu and cannot be selected. However, if I simply create a second new mailbox (called NewBox), then both NewFolder and NewBox appear at the first level under On My Mac. I can then drag NewBox onto NewFolder and the former becomes a mailbox within the latter (i.e., goes to the second level), as I wanted. I should have investigated more before asking. Thanks, Gregg > On Dec 27, 2015, at 11:18 AM, Dinse, Gregg (NIH/NIEHS) [C] > <[email protected]> wrote: > > Hi, > > In the Apple Mail app, I can click the plus sign in the lower left corner of > the main window to create a new mailbox. For example, I can add a new > mailbox called "NewBox" by entering that text. > > Not too long ago, I could add a new folder and a new mailbox by entering > "NewFolder/NewBox". This would create a folder called "NewFolder" with a > triangle to the left of it. If I clicked the triangle, I would see a mailbox > called "NewBox" within that folder. > > Now under Yosemite (10.10.5), and I assume under El Capitan, entering > "NewFolder/NewBox" does nothing. It does not create a new folder containing > a new mailbox, nor does it even create a new mailbox. > > I can still create a single new mailbox in the On My Mac section of the Mail > sidebar, but how do I create a new folder? > > Thanks, > > Gregg _______________________________________________ MacOSX-talk mailing list [email protected] http://www.omnigroup.com/mailman/listinfo/macosx-talk
