3.5 years ago by
Hover over the track near the name and icons to configure display will appear, including those that will expand datasets and zoom in/out.
This graphic shows where: http://i.imgur.com/n7WSfOg.png
There have been many upgrades since this publication from 2012, but is a good place to start to learn more about Trackster. One can also just experiment with the functions. The particular visualization tool has some advanced functions, but general viz is straightforward. You will find most are somewhat similar to other browser tools, with a few extra nice add-ons, such as being able to group tracks into "composites" by simply dragging them in the UI. Plus all the Galaxy sharing options apply. The wiki link has more snippets of info. Start in "Learn" and have a look around.
Hope this works out for you, but if are still stuck, please let us know and we can get into the details more. Jen, Galaxy