I always found it annoying having to sell or buy claim blocks to check how much we have in total, or having to go to a chunk loader that I hid under my base to check how many chunk loader tickets I have left. I was thinking, if there was a tab on /menu where we could mouse over and see those stats, and maybe a little extra like time played and balance, it would be really convinient.
As Werwolfi_de said use /claimslist to see how many claimblocks you have available and where you claims are. As for chunkloader tickets: Only method is to open a chunkloader. However if you hid your chunkloaders and you want an easy comprehensible list of them, do: /cm list <yourname> (only works for yourself). It will give you a list of all chunkloaders in use. active and inactive