Can you scale eyeball in the facial profile expression editor?

Hello all, I’m just getting used to the facial expressions editor.

I can move the bones fine which is great. It also allows me to rotate, however the scale icon is greyed out

I would really love to be able to scale up his eyeballs For a custom slider expression. Is this possible? If so how.

Thank you so much.

30 year comedy writer, director. TV, Radio, Stage, Just For Laughs, Cirque du Soleil, etc. I write for your favourite comedian. I also write for the comedian you hate. I'm that good/bad.😜Alienware Aurora R13, Win 10, i9 12900KF, 3.2 to 5 GHZ CPU 16 core, 128 RAM,RTX 3090 24 GB, 2TB NVMe M.2 PCIe SSD (Boot) + 2TB 7200RPM SATA 6Gb/s

Gold. Thank you so much.

30 year comedy writer, director. TV, Radio, Stage, Just For Laughs, Cirque du Soleil, etc. I write for your favourite comedian. I also write for the comedian you hate. I'm that good/bad.😜Alienware Aurora R13, Win 10, i9 12900KF, 3.2 to 5 GHZ CPU 16 core, 128 RAM,RTX 3090 24 GB, 2TB NVMe M.2 PCIe SSD (Boot) + 2TB 7200RPM SATA 6Gb/s

Gold. Thank you so much.

30 year comedy writer, director. TV, Radio, Stage, Just For Laughs, Cirque du Soleil, etc. I write for your favourite comedian. I also write for the comedian you hate. I'm that good/bad.😜Alienware Aurora R13, Win 10, i9 12900KF, 3.2 to 5 GHZ CPU 16 core, 128 RAM,RTX 3090 24 GB, 2TB NVMe M.2 PCIe SSD (Boot) + 2TB 7200RPM SATA 6Gb/s