Only plants a circular area (Limited range from farm)

With level 1 tractors, I noticed, If I designate a large area to paint. It is easy to exceed the equipment maximum range from the farm. Is this limit intentional or a Bug or limit of the game? Maybe keep that limit if it is adjustable and offer larger tractors/combines (Level 2 and maybe even level 3) to accommodate larger land areas painted for plating? Note, I have only discovered as far as just Field Farm only. Thanks.

hi, it was a fixed range of 160 tiles, in 1.5.1 it grows with the farm level now: level I 160, II 240, III 320 tiles. so if you want bigger fields further away just upgrade the farm :)