Hi there. The Alpha masks made by SAM2 has several thresholds, so you can expose more or less of an object, depending on the threshold you set in the Alpha masks effect widget. The effect appears to be keyframe-able, in that it lets you put keyframes on the effect's timeline, and you can adjust the threshold at these keyframes, but it does not seem to actually adjust the threshold once the first keyframe is set. It would be totally awesome if this effect was keyframing properly.. More about my system: ``` Operating System: Arch Linux KDE Plasma Version: 6.2.4 KDE Frameworks Version: 6.8.0 Qt Version: 6.8.0 Kernel Version: 6.12.10-arch1-1.1-g14 (64-bit) Graphics Platform: Wayland Processors: 32 × AMD Ryzen 9 7945HX3D with Radeon Graphics Memory: 62.0 GiB of RAM Graphics Processor: AMD Radeon 610M Manufacturer: ASUSTeK COMPUTER INC. Product Name: ROG Strix G733PYV_G733PYV System Version: 1.0 ```