Thanks both of you for the reports. I’ve likewise seen that the tabs set in the Options don’t stick, so I’ll be sure Lee is aware of it and it will get fixed.
Taking the other items in order:
Two issues here. First, you’re actually talking about the right indent, not the margin; it may help you to see Ioa’s post and explanation on the margins/right indent here. Either way, the issue with the indent limitation has likewise been noted and will be fixed.
Second, when you say “new documents are coming in” do you mean imported documents? If so, then that’s expected–documents that you import will not have their formatting or ruler settings changed to match your Scrivener defaults. This is intentional, so that you don’t lose your formatting; it’s easy to switch them by just selecting the imported documents in the binder and choosing Documents>Convert Formatting to Default Text Style. That will give you some options on what specifically you want to convert—you will probably want to check the box for “preserve font styling” at minimum, unless you want your italics, underlining, etc. to be overwritten. (In future, this will be adjusted so that it will automatically preserve such formatting and you won’t have to select it yourself.)
If however you meant that you documents you create in Scrivener aren’t conforming to your Option settings, that’s a bug.
I’ve seen some other reports of formatting getting weird at a split, and I’ve gotten some of it myself, but it’s all just been character attributes or font–I haven’t managed to replicate the spacing issue you’re seeing. It’s probably all related and will get fixed together, but if you could provide any more specifics it might help pinpoint this. What type of document are you importing as–rtf? doc? When you split are you selecting the hash mark or just placing your cursor inside the text? I’m assuming from your post that the imported document is double-spaced; does it also have a first line indent? (You mention the “margin of 1.1” which I’m thinking might mean the tab stop or the left indent–what was it for your original document?)
Copy Style doesn’t seem to be bringing over the ruler settings, as you observe. That will get fixed or else the options may be divided into something like Copy Ruler and Copy Font. Either way, it should be possible, although I think it may not be the easiest method here. Instead, you should be able to select all and adjust the spacing via the Format menu or format bar; you could also select the documents in the binder after you’ve finished splitting and use the Convert to Default Formatting to correct the spacing, indent, etc. (and once this is fixed it will insert your tab stops as well).