The text entry field on the coordinates search can handle any of more than half a dozen coordinate formats! Please see our Help Manual for examples of some of the most common supported formats.
On the other hand, if you were referring to the DMS roller wheels input screen for coordinate search, then you can just leave Seconds at 0 and just set the Degrees and Minutes as desired. There is limited space and thus this wheel based input is not very suitable for inputing other coordinate formats. We could possibly add DM.mm format support as well if that seems useful?