Tapestri Designer supports human genome hg19 (GRCh37) and mouse genome mm10 (GRCm38). Tapestri Designer also supports custom genome uploads. For more information, refer to this article.
If you have hg38 coordinates, convert them to hg19 using the UCSC liftover tool.
For example, when designing to a gene on chromosome 1 in the region 11,205,824 to 11,207,703, enter it as either:
Important: Review the position of the entered coordinates in the completed design to ensure they are correct.