What is meant by the "size limit" and why is a transaction of just 2 RADS above the size limit (I guess then any transaction is)?
For some reason, the size limit warning is standard in pretty much every coin wallet. WHY, Im not sure. Its not something to worry about, it just means you have to pay the network fee (tiny) to send a transaction. Perhaps we will go take a look at the code and see if it can be changed to something that makes more sense. Your feedback on the user experience is valuable, as many of us have been around coins and such for a long time, we no longer notice these things.
Now as I unlocked my wallet and am ready to stake for PoS, the wallet leaves me with 0 information on my current status in that regard.
After you unlock your wallet for staking, it can take a few minutes for it to warm up and start staking. You know your wallet is staking when the little lightning bolt at the bottom left corner turns white. If you hover your mouse over the lightning bolt, it will provide you with the network stake weight, your stake weight, and estimated time to find a block. You are not blind, its not in a very intuitive place.
Another question: How can I create a Radium paper wallet (where do I find the private key to my addresses)?
Currently, we do not have a dedicated service for creating a paper wallet. I would suggest using a flash drive to back up your wallet.dat, and then putting that drive in a fire safe or other safe place. I use several flash drives for my backups, and they are all locked in various places. You can get your private keys using the dumprivkey command in the debug console, but I prefer not to use it because it exposes your private keys.
Let me know if you have any more Q's!
JJ