Digits in grid reference:
+-
Zoom level:
+-
Point required using format options above:

Grid refs can have 6, 8 or 10 digits but point entered must have leading
zeros and match the digit level, e.g. digits = 8, ref = SJ 0123 4567. UTM must be separated by spaces. Lat/Long can also be: 52.1 (degrees) or 52 30.5 (degs mins) or 52 30 30.4 (degs mins secs)

+ If entering grid refs in numerals, make sure the ref is in metres e.g. 300000 400000
+ Make sure a UTM ref has letter/number zone then numbers with easting
and northing, all separated by spaces. Map Datum is WGS84.
+ Use negative lat/lon if required but do not use letters at
the same time..
+ In UTM & lat/long references, the space can be replaced with a + sign.)
+ Lat/long in dm or dms format should be separated by
spaces, e.g. 52 30.5 -2 10.3