I try to find out - what is wrong with me or with Autochart.
Just started AutochartPro(i have huge Drdepth experience with HUM, LOWR and mobile devices).
Imported files from DrD to Autochart. Easily

NICE:) Imported waypoints - cool... nice program.
Made maps. Played with depth, hardness etc... Nice. Recognized everything from DRD and no questions
BUT.... then I decided to make nice custom map of 7 km large lake and check the new look on my HUM. Did not manage

Got replay from AutoChart, that "The New area did not fit inside.... bla bla bla...". OK. Rename AC folder, now ON SD card I have AC and AC1 folders. AND? Same replay

Keep trying, reading manuals several times, no solution, no changes.
Finally deleted all *.acd files from database, imported just one, single... small... tiny track. NO!!! I can make the map, but cannot create lakemaster map for HUM. Getting: "Error. The new area did not fit inside the current custom map. See the Getting started guide for instructions..... bla...bla..bla..."
I see only 2 reasons- 1. The AutochartPro purchased in USA do not work in EU or - 2.nd - I cannot find that magic way of "New area creation " , too complicated

Has anybody replay to help get out from this story? What I am doing wrong?
AC is purchased in USA, a month ago.