Changing the y-axis and size of the Menu buttons?

[CrystalMagick]

So I want to do a more custom main menu for this game I'm making, and I'm wanting to fill up some space with the menu buttons
I've figured out how to remove the box the menu's start with, as well as moving the buttons on the x-axis,
The problem is I can't find how to move them on the y-axis or make the buttons bigger, the ren'py guides don't seem to address this, and any videos on it are old and out of date.

Is it even possible to make them bigger and move them up and down? If so, how? Because I can't find anything in any of the .rpy's about it. or if I do find something that COULD change it, it doesn't work.

EDIT:
So by messing around I managed to change the size, now it's just the issue of the y-axis

[plaster]

Everything you do with x you should also be able to do with y (ypos, yanchor, yoffset, etc)