Auto create forms and data modules does not quite work

I've recently moved to Delphi 10.1 Berlin Update 2 from using XE and XE5. One thing that caught me out was that I forgot to turn off the 'Auto create forms and data modules' in the 'Form Designer' options. This setting means that when you add a form or data module to a project it gets auto-created at run-time.

The problem with this setting is that it does not fully work. I have a project where I do not want to auto create any forms or data modules, I have a class that is responsible for doing the initial creation of the required forms and objects, but if I add a form or data module to the project it always gets added to the auto create list in the project. This option assumes you want just one form in the list, once one is added it does not add anymore.

This problem could occur in all versions of XE and the now the more recent versions (DX), I plan to check this with XE and will hopefully soon be updating to the latest version of Delphi.

Frame Inheritance - TabOrder: Property does not exist - Issue Fixed

I've been working on an application recently and it has a few frames (TFrame), I noticed that there were common properties and methods to all the frames, so I decided that they should derive from a base class. I created the base frame class and then in code derived the other frames from the base frame. It all seemed to work fine a build and ran OK, however after closing the project and then coming back to it a few days later, when I tried to open a frame I received an error stating the TabOrder property does not exist, I ignored it and received more property does not exist errors (I did not save any changes). The solution to this problem was simple, in the .dfm file at the top was:

object TestFrame: TTestFrame 

This needed to be changed to:

inherited TestFrame: TTestFrame

The ideal way to do this is at design time when designing the structure of the application, if there is an abstract or concrete frame class then this should be added to the repository so when a developer needs to create a new frame, they can simply inherit the frame from the one in the repository.

This is a very similar problem to inheriting datamodules, I've also had to do something similar.