Video Extend idea: asign different LORAs to each <extend> section

[Lainier]

When using the Video Extend feature, there is no way to asign different LORAs to each <extend> section (or I haven't found a way to do it). In other words, when using i2v LORAs, they will apply to all <extend> sections. It would be great if we could choose which LORAs are asigned to each <extend> section. Also note that WAN 2.2 uses a dual model, so the syntax could be something like this:

Basic prompt
<extend:81> Extended prompt <extend_video> <lora_x_high> <extend_videoswap> <lora_x_low>
<extend:81> Extended prompt <extend_video> <lora_y_high> <extend_videoswap> <lora_y_low>
<extend:81> Extended prompt <extend_video> <lora_z_high> <extend_videoswap> <lora_z_low>