arrows on the both 5' and 3' end of each track item that has exons positioned beyond the edges of the current image. Clicking on one of the arrows shifts the image window to the next exon located towards that end of the feature. Another new configuration option—‘Enable track reordering’—allows the user to change the display order of the track groups as well as the order of annotation tracks within the groups, and to move tracks between track groups. This is particularly useful for customizing the browser display to individual research needs or for creating images for publication. Track groups on the Genome Browser tracks page may now be quickly collapsed and expanded by clicking the + and − icons on the left side of the group label.
