Q: changing plugs & coilpacks on the passenger side

I changed the driver side spark plugs and coil packs last night, it was very straightforward. The only extra step was to unscrew the power-steering reservoir and move it to the side so I could reach cyl 9 & 10.

I’m going to do the passenger side tonight. But I’m not too sure about the moving coolant reservoir - is there a trick to getting that out of the way without losing the coolant? If anyone has photos or a link, that would be appreciated.