I don't see all the tools in my tool palette that the manual and Quick Reference Card decribe.
If you have a small monitor or the resolution of your monitor is set to a low resolution, the toolbar may shrink in size. To compensate for the decreased size of the toolbar, some of the tools get added to other tool items on the tool bar. For example, the cyclo-ring tools get added to the Cyclopropane tool. If you click and hold on the Cyclopropane tool, a pop-out list appears containing the other cyclo-ring tools. Any tool in the tool bar that has a small black triangle in the lower right corner of the tool indicates that it is a pop-out list containg other items.
For ChemDraw Std 4.5 and above users: Due to the addition of another selection tool, the Arc tool has been added to the Drawing Elements tool (parenthesis tool). Click and hold on the Drawing Elements tool, and you will see the 4 arcs that were part of the Arc tool.