Merlin’s Delphi Forge

To place multiple instances of the same component on a form, hold down the Shift key and click on the component palette. You will notice that the component icon border is now blue. This means that every time you click on the form an instance of the selected component will be created. Let go of [...]

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 [...]