When I browse to the Points page of my data server, I only get a small fraction of the points/tags listed (only tag names that starts with 0 or 1). What's the trick to have it show all the points?
By default, browsing to the dataservers/webid/points controller will return 1000 objects. You can modify the result's max count by adding "?maxCount=<desiredNumber>" at the end of the URL
More information can be found on the controller's documentation page
PI Web API GetPoints
I just want to add here that scrolling through thousands, if not hundreds of thousands, of PI Points object in a browser might not be optimal. You might want to filter down what you actually want to see by using the nameFilter URL parameter for example (still in the docs I linked)
Retrieving data ...