While the game does not have a "brush" tool to draw custom tiles from scratch, Creative Mode provides several tools to "create" the exact piece you need:
(like a perfectly symmetrical village)?
You have an infinite stack and can skip or discard unwanted tiles until you find the configuration you want. Dorfromantik.v1.1.4.3.rar
Use this tool to automatically create a tile whose edges perfectly match all adjacent placed tiles at a specific spot. While the game does not have a "brush"