Thanks to all for that information. Apple does not make it possible to download pre-Sierra installers either via their website or App Store. Considering that it is possible to do just that via the recovery partition, if one knew the codes involved (I may be using the wrong term so please correct me), one should be able to get those installers on demand. Probably, this violates some aspect of the EULA but I'm floating this as a possibility.
Comments, anyone?
Jon
macOS 11.7.10, iMac Retina 5K 27-inch, late 2014, 3.5 GHz Intel Core i5, 1 TB fusion drive, 16 GB RAM, Epson SureColor P600, Photoshop CC, Lightroom CC, MS Office 365
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