I believe this is a respost of the question you asked before on January 12:
And, that the answers given to that question can also answer this one.
And, nothing stops you at design-time in WinForms from selecting (use control-click, or click-drag, or whatever) more than one of any type of Control, and setting their Anchor or Dock properties at the same time: try it !
But, what are the "red strips" you refer to at the right-bottom of the Form ? Standard practice, in WinForms, is to enable the SizeGripStyle property of the Form, which will appear at bottom-right: you can force it to always appear by setting it to 'Show.