On/Off buttons for line in a chart - interactive PDF

I have a line chart with various coloured lines. I am trying to make the chart interactive so you can toggle on/off the vaious coloured lines. In my head this should be really simple but I am struggling.

I can make a button turn a line off, but not back on. I could create two sepeare buttons for every line for both on and off but that feels overkill.

I thought the radio button may work but in a similar way I can make it do one action, but not the second. So I can click to hide the line but not turn it back on.

This needs to remain as a PDF so would appreciate any help people can offer.