How do I make dockable forms like the IDE's without the very slow freezing movement of the dockable form?

Question

How do I do the IDE method or eventually make the basic dock method without the very slow freezing movement of the dockable form?

When I Googled for dockable forms i

Answer 1

Have a look at the Using the TDockTabSet component article by Jeremy North. It is a few years old but should give you some helpful pointers.