Where have all the buttons gone?

Oracle's Apex product Apex.oracle.com allows a web page developer to place buttons in pre-defined locations within an Apex page region.  As a developer, one is faced with a pull-down menu displaying about a dozen choices. I haven't used Apex enough to easily pick the right location the first time.  I usually pick something that looks right, display the page, and take another try or two to get it right.

I need a cheat-sheet showing the button descriptions with the buttons sitting in the right places.  So, I created an almost-empty Apex region and added a button at every possible pre-defined location.  Each button has a label derived from the pull-down menu, so a quick glance shows the button descriptions and where it physically goes in the region.

If you visit the buttons page, you can see the predefined locations in a region and buttons placed among the Apex items. There are three regions on this page:  one region with all the buttons right-aligned, one region with all the buttons left-aligned, and the last region with buttons and data items intermingled.