Selecting the visualization mode

Comment: The complementary chain is displayed as
5'-CTGCACAGCAAT-3'.
For example, if the direct chain is
5'-ATTGCTGTGCAG-3'
Then the complementary chain
3'-TAACGACACGTC-5'
At visualization in 5' to 3' direction will appear as:
5'-CTGCACAGCAAT-3'