feature request: threshold "identical isoform" by a percent overlap of the individual exons

[cmatKhan]

For two isoforms to be compared at the sequence level, they should overlap at the exonic level by a certain percent (eg, each exon should be 90% overlapping)

If they are missing an entire exon or something like that, I suggest that is better reported as a splice variant. We aren't calling variants -- we're finding (significant) differences