You'll be wanting to use grouped asset listings for this one. In the details screen of the asset listing change the 'list format' to grouped. Then access the 'asset grouping' screen to customise how the groupings should behave and then perhaps the 'asset sorting' screen as well to customise that.
You'll need to define the group formats the same way as you do the page contents and type formats for the asset listings. The group formats appear as a dependant asset that you can modify to customise the formatting (e.g. add group names as headings).
It requires a little more work to setup, but grouped asset listings is able to do exactly what you are after.
I just noticed that on our alphabetical asset listing it sorts it alphabetically based on the web path. Is there anyway around this so that its based on the asset name/friendly titles instead?
As an example, if I had an asset called "Systems Administrators Concepts", and the web path was admin_concepts then our asset listing will display it under A and not C.
We also have various manuals which contain lots of standard pages inside them. We would only want the first manual page to display in the asset listing and not children below that. Any advice?
If you have an asset listing configured for A-Z grouping, the name or short name of the asset is used, not the web path. In fact, there is no option to sort by web path so it's wierd that is happening.
When you do pick A-Z, you need to select either NAME or SHORT NAME in the SORT BY field towards the bottom of the Details screen of the asset listing. Maybe you need to switch that around??