Import spell animation of call lighting from IWD to BG2

Hello, I invite you to address this question: I have used CALLLIH.bam in IWD to replace the skybolt.bam (spell animation of call lighting)in BG2EE, but I found that in some cases, it is covered by background when displayed. I have already found a parameter that is related to whether the bam is displayed on top (set parameter Y to 1) or bottom (set parameter Y to 0) of other bams. The fire damage effect is regulated in this way. But I didn't find any VVC that is related to skybolt.bam in BG2EE, can you help me? Many thanks!