We can try indent and see how it goes. Copy and Paste I can do via keyboard. It's just convenient sometimes to be able to delineate easily which part of a comment is quoting someone else, especially if you want to parse a comment and address different portions seperately. Silly Fer instance...

I don't see specific "block quote" or "quote" icons

Then look harder.

when I look through the TinyMCE options

Well there's the problem. TinyMCE sux because it doesn't have those. (I don't know if that's really the case, I'm just blathering.)

but we do have "indent" and "copy" and "paste" options. Will those suffice?

No. Heh heh. Blockquote certainly seems to work in the preview. Let's see if it works for real. Maybe they just forgot to put it in the list. Dream a little dream of me.
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Kisses,

JanieBelle

Dream a little dream of me.