Actually, the title says very little and is very confusing. I have no idea what you're talking about and I suspect nobody else does either.
Perhaps a screen shot and a better explanation of what you're trying to do would help.
I'll break it down....
When you go into object styles for a text frame you only have the option to set the left/right inset, what i would like is to know how to set inside/outside inest instead rather than having to have to seperate styles for left and right pages just to facilitate having a symetrical layout.
There are four text insets, top, bottom, right and left. There is no outside inset as you call it but you can set a text wrap.
Again, a screenshot would help here but a shot in the dark for facing pages is that you might want to set your paragraph styles to align to the spine.
Can you explain why you need asymmetrical insets, and they should mirror? Most of the time this sort of thing can be handled by using mirrored margins and frames without left or right inset, or with a symmetrical inset.
I am having to design for something that is then going to have a 3 whole punch so the inside needs more spacing than the outside.
I thought the right way to do it would be to use insets for the spacing rather than just making the text box smaller within the print area. Later on there will be images and other objects but at the moment just putting the text in and getting it set up first.
The reason for the asymetrical insets is because with the extra space given for the 3 hole punch there doesn't need to be as much space given as on the outside.
Now having said all of that i could be wrong about how i'm going about it, it's just what seems like the logical way to go about it without 'hacking' the design to make it work.
Thanks for the help and feel free to add any other thoughts you have, always happy to learn.
There is a difference in Text frame inset and allowing the space to inside edge of page for binding.
You need to set the inside margins (hoping it to be facing pages document) of the document and then make sure that the content of the document lies within the margins only.
Binding space on the inside edges of the pages will be between the page egde and the inside margin, and you need not to bother for it once defined for the document.
You can define the inside margin when creating the document in the New document dialog box or from Layout>>Margins and columns in the document already created.
Inset in the Text frame is a different concept and different utilization all together.