Q:

Insert a url segment without creating sections

I have a very simple site split into sections. All pages use just one template.
The previous site had sections such as /section/subject.  I had thought I could have all entries in just one section and then alter the URL on each entry to include a 'pretend' section /section/{slug}, but this defaults to /section-subject.
Is there a way to have /settings/subject/ without creating new sections?
Many thanks
Martin

A:

From what I gather from your question you want some sort of sub-categorisation of your entries. 
Such that one entry can have the URL as:
    siteUrl/section/subject-1/entry-slug
while another entry can have a URL as:
    siteUrl/section/subject-2/entry-slug
If that is what you want to achieve then you have to look into Structures instead of Channels
Here is the link: http://buildwithcraft.com/docs/sections-and-entries#sections
You can basically have multiple entries with sub-urls in the same structure section.

