I am trying to perform exon-intron split analysis on human RNASeq datasets, using eisaR. Since I am not able to generate the genome index files using my computer, I downloaded the index files from Hisat2 website. I would like to know if it would be possible to use these files for further alignment step, instead of generating the index files afresh on my computer. If this is possible, what changes need to be made in the command lines? Would appreciate any guidance on this since I am new to the field.