How to Put Carbon Bike on Bike Stand

I have Park Tools PCS-10 original version: https://www.parktool.com/en-us/product/home-mechanic-repair-stand-pcs-10

I just bought used Trek carbon frame bike. This bike uses a seat mast. The seat mast cap is too short for the bike stand clamp. At least I cannot clamp it horizontally. I thought about clamping it from the front or rear, which might work, but it is not ergonomically feasible, as the bike will interfere with the stand's main tube and the bike will be at weird angle.

Any suggestions or work around? Without having to buy a longer seat mast cap or another bike stand?

https://preview.redd.it/43c9sic4sogg1.jpg?width=1740&format=pjpg&auto=webp&s=e89b8bcd91f64c7ffbceeefab798da725a2fd0fd