Merlin’s Delphi Forge

Delphi and Kylix have a couple rather unknown form and component editing shortcuts. Here they are:

To select the form when its surface is covered by components, simply Shift-Click the form.
To fine move (by 1 pixel) a selected component just press Ctrl whilst pressing the cursor keys.
To fine resize a component just press Shift whilst pressing [...]

Here are 3 undocumented registry settings that modify the behavior of the Delphi component palette in a manner you may like. But why are there hidden features first of all and why are they not “available” to the public? They may may have been introduced too late into the product to get documented, or they [...]