You can navigate nested layers within a Figma document by holding down CTRL or CMD (depending on your platform) then right-clicking on the page.
Move the Selection Box During Selection
When you’re drawing out a selection box to try and grab a bunch of items, if you hold down SPACE you can actually move the selection area.
You can zoom in and out of a page in Figma much like you can with a lot of applications; hold down CTRL or CMD and hitting the + or - key, but you can add some precision to the process too.
Zoom Directly Into
Another way to zoom directly into an object is to double-click on its icon in the layers panel.
Figma allows you to do what’s called “nudge panning”. Hold down z and hit the arrow keys to perform small nudges around the canvas. For larger nudges hold down SHIFT + Z then hit the arrow keys.