SlickEdit: Pop to active file in the project browser

One feature I've come to rely on in Visual Studio is it selects the currently active file in the project explorer. By default, SlickEdit doesn't have this functionality, but you can add it yourself. I found some kindred spirits on the SlickEdit forums that wanted the same behavior. Just add the code on the first page for showInProject() to a new .e file, then append the code on the second page for _switchbuf_auto_showInProject() to the bottom, load the .e file from the Macro -> Load Module menu, and you're set!