${site_id in $APP.config.ucsc_display_sites} ${dataset.dbkey in $builds} ${ucsc_link}db=${qp($maf_customtrack_file.dbkey)}&position=${maf_customtrack_file.metadata.vp_chromosome}:${maf_customtrack_file.metadata.vp_start}-${maf_customtrack_file.metadata.vp_end}&hgt.customText=${maf_customtrack_file.qp}