I'm a Weather Display user today, but I'm thinking about going Meteohub

I've set up a NSLU2 with Meteohub for testing, and I've got some questions:
1)
Is't somehow possible to input snow manual for WDL?
2)
When using Weather Display, I also automatic got a short briefing - fog, rain ect. Is that not possible with Meteohub?
3)
Is't possible to set rain values manual (month and year)?
4)
What about weather records - most wind, highest temp and so on...
5)
Can I somehow keep all my weather data from WD, to be used with Meteohub and WDL? Clientraw data's...
Hope someone can help
Thank you