displaymacos
Several apps I use are set to "Open at Login". However, they are always opened on the primary screen, instead of the last position, which is the secondary one.
I those apps exclusively on the secondary display and it's pretty annoying to always move them there and resize because of extra space (no dock there).
How can I configure where apps will open by default?
How can I force them to keep the same size as last time they were used?
I answered a similar question here - cmd-tab behavior on Mavericks with multiple displays
The Task Switcher does follow the Dock. If the Dock is on screen 1, the Task Switcher will appear on screen 1. If the Dock is on screen 3, the Task Switcher will appear on screen 3. Etc.
To make your Dock appear on a screen you can use a couple of methods.
Method 1 - Move your mouse to the bottom of the desired display. Don't stop once you reach the bottom of the display though, try to move it further down, as if you're pushing down on the bottom of the display with your cursor. This action tells the Dock to move to this display. This is temporary however, meaning the Dock will stay on this display until you perform this action on another display or reboot your Mac.
Method 2 - This will change the default starting point for your Dock. In System Preferences > Displays > Arrangement you can drag the menu bar from one display to another in this windows display icons. See the attached picture for reference. This alters the default preference to always show the Dock on the desired display, the one you drag the menu bar to in this preference pane, when you boot and/or login to your user account. You can still use method 1 to temporarily change the Dock's location but upon a reboot it will return to the display specified here.
I have found that you can move the app window if you position the mouse over the edge to get the horizontal or vertical resize arrows. The trick is to move the mouse horizontally if you have the vertical resize arrows or vertically if you have the horizontal resize arrows. It is a bit tricky, but it works on Mavericks 10.9.x This trick does not work with the diagonal resize arrows. The trick works better if you get the resize arrows the furthest away from the window without turning back into a normal pointer. You can practice this trick on any window, off screen or not.
Best Answer
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Window position and size control
I Googled and found a solution for the resizing issue. (Source)
Make your application launch via an Apple Script!
Make a script similar to this:
Save it as "Application"
Put the saved application in your Launch Items instead of the program itself
Additionally you may undock it with Dock Dodger to make this script run silently.