A couple of maybe "stupid" questions.
1) In the board window. Sometimes I get a brownish-green "X" usually over a via. What does this mean?
2) In board window after doing a DRC check. I get a lot of "overlap" errors. Can I safely assume these are OK if they are intentional (e.g. ground nets running into/over ground plane and heat sink copper areas)?
What is the best way to provide large GND areas for heat sinks? Draw "rec" on the bottom layer? How do ground planes get connected to the GND net? Automatically if they touch/overlap and GND net trace? They have to be defined explicity?