Is there an easy way to centre something between multiple sprites?

Basically the title. I need to put my camera object in the direct middle of a set of other sprites (my level). I can't make multiple, as it adds a lot of work for moving to other camera later. Anyone know?

See this demo:

howtoconstructdemos.com/auto-zoom-and-scroll-the-screen-to-fit-multiple-characters

It's for Construct 3, but you can watch the video, or open the project in free version of C3 and copy events to C2.

If you don't need the zoom just average the x and y "for each" sprite, and divide each by the number of sprites.

Also the Scroll To behavior already does this.

Also the Scroll To behavior already does this.

I'm using the Scroll To behaviour on the camera sprite, I just need the object to be centred so the camera is centred. I can't centre it manually because I'm adding a camera for each room in the game (the system is how Undertale does it, you walk to the edge of a room, camera goes to the other room) and there are a lot of rooms.

If you don't need the zoom just average the x and y "for each" sprite, and divide each by the number of sprites.

I feel like this would take even longer than doing it manually, having to type out every single x and y value for over 100 tiles in one room.

dropbox.com/s/obdtfty07exs44i/averagxy.c3p

newt Calculating the average of sprites x coordinate doesn't work very well here. If you create one sprite on the left and lots of sprite on the right, the scroll will move to the right.

You need to calculate the center point between the leftmost and rightmost sprites.