Bookmarks are positions within files that you might frequently want to return to. For example you can use a bookmark to store the location of a interesting part in a recorded interview.
To add a bookmark select Tools -> Bookmarks -> Set New Bookmark and enter the name of the position. When you want to return to the bookmark select Tools -> Bookmarks -> Open Bookmarks List to open the bookmark list, select it from the list and select Go to Bookmark in the long press menu.
To select from one bookmark to another bookmark, select that bookmark from the list then choose Select to Bookmark... in the long press menu.
Regions store a selected part of the recording. (A bit like the copy clipboard but you can have many).
To add a region select it, select Tools -> Regions -> Add New Region and give it a name. Then at any point open the regions list (Tools -> Regions -> Open Regions List) and use the long press menu to play, select, rename, delete, copy to new, save the region or assemble the regions (see below). You can also export the selected region(s) into one folder by selecting "Export Region(s) to folder"
Regions can be extremely useful when working with a long recording like an interview that needs to be rearranged. As you find each interesting grab, select it and make it a region. When done, use the assemble tool to put all the regions together. Regions can be used for track marking DJ mixes.
Regions are not persistent.
This option allows you to save the selected regions as separate files in a folder and format of your choosing. Access this feature by selecting Region menu -> Open Region List, then long pressing on one or more regions and selecting "Export Region(s) to Folder" from the menu that appears. You will be presented with a choice of which folder to export to, and which output format and format settings to use in the exported files.
This tool lets you quickly edit a series of regions together. This is particularly useful when editing interviews.
After you have added all the grabs of interest as regions open the Assemble Regions tool (Region -> Assemble Regions). Add the named regions in the order you want. And tap OK.
By default WavePad inserts 300ms silence between each region. This can be changed by tapping on Options on the Assemble tool window.