I did not really get your problem to be honest. So, you have created six wallets (means six different seeds) to link each wallet to a particular Bitcoin address, right? If so, there is no other way as looking up the respective wallet balances on the
Byteball explorer manually.
To give you a hint: The amount you get for your linked Bitcoins is very low since the yesterday's distribution. In October there will be no distribution. Next one is in November and there you will also only get very low earnings for your Bitcoins. Why don't you just send your Byteballs to one account? It is much easier to manage.
I created different wallets because I ran out of receiving addresses. I don't know if there's 6 separate seeds or you can recover the entire thing at once.
Since the program holds all the wallets at the same time, there should be a way to know the sum of all wallets without you having to sum it manually.
Why I didn't link everything to a single address? well because that's pretty stupid for anybody that knows how bitcoin's privacy work.
Btw, I have received an incredibly disappointing amount of byteball for the amount of BTC that I linked, looks like I wasted my time.