register
go License Manager, Get Basic button to create a project license,
then click the license name, it will show the long string license key, copy that and save to a text
go to target manager tab on the webpage (next to license manager)
Add Database, to store the image track references
click the database to add the target, (normally image designed to print on A4 paper 0.29 x 0.2 in size)
marker must be contrast in term of greyscale (good like edge detection, not like gradient)
corner is good, round edge is bad
marker must be no repeat or pattern in itself
feature points evenly distributed and enough feature points
jpg, png and enough resolution
print size at least > 12cm in size
once done, click Download Database as another unitypackage.