Hot answers tagged nouns
The word porcelain is often defined as "vitreous china", which suggests that it is a subset of 'china' generally. Vitreous means glassy, and if you break vitreous china, it is glass-like all the way through, it does not have a grain to it. China, generally refers to pottery ware that is not glassy, it has a sandy or finer textured grain when you break it. ...
Yes, 'repetition' can be both count (with plural 'repetitions') and non-count (when we don't speak of singular or plural; but, in this usage, taking a singular verb), as ODO says. But I'd say that the construction you mention parallels 'did it in faith' which never takes the count usage (even though 'faith' of course does) as opposed to 'spoke in ...
I would call it automatically selected text, or pre[-]selected text. The second usage, if you need one word, seems to be used quite often (1, 2): Pre-selected text in new FM-14 calculation dialog Pre-selected text could be more helpful.
I agree that pre-select is a good choice (already mentioned in comments and Vilmar's answer). Another possibility is auto-select: Here is a function that when called on a particular HTML element will auto-select all of its inner text. (www.matts411.com) Auto Select Textarea Text (css-tricks.com) Copied-ready does not sound idiomatic to me.
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