Multi-region display 'slices' the genome to allow viewing discontinuous regions together in the browser window.   

Exit multi-region mode
Show exons using GENCODE VM23.    Use padding of: bases.
Show genes using GENCODE VM23.    Use padding of: bases.
Enter custom regions as BED, or a URL to them:
Show one alternate haplotype or fix patch, placed on its chromosome, using ID:

Highlight alternating regions in multi-region view