Allows setting of preferred VAE and Text encoder(s) for checkpoints when selected via Checkpoint cards. No selection saved means no change to current toprow setting. 'Built in' option, if the only choice, means clear the toprow selection (therefore use vae/te built-in to checkpoint).
Also allows setting model type for checkpoints (SD1/SD2/SDXL/Flux/Unknown) (user set only, no attempt at autodetection), enabling filtering of the cards based on UI preset.