Hi, probably best to ask questions in the forum so others benefit from seeing the answers.
Yes, you can send NSR to the Nubits wallet. You can see NSR ballance by clicking the logo in the top left a number of times until the NSR wallet is loaded (after cycling through US NBT, EU NBT, CN NBT etc).
One word of advice - let the blockchain sync completely before transferring any NSR, as if there are problems syncing you won't be able to send your NSR from the wallet until it's synced properly.
Hope that helps!