Seems like the same or similar tool like the one I linked to in my post.
The problem is, I can play with some of the settings but the "Derived Addresses" list on the bottom of the page doesn't come up with a match to one of the public addresses I can see in the mSIGNA wallet.
My guess is BIP49 (or maybe BIP141) would be the right option, as they are the only ones producing addresses starting with 3. But playing a little with the derivation pathes (I tried 1-5/1-5) doesn't bring up a match.

Something to note: The BIP32 Extended Key does never match the one from mSIGNA no matter which of the BIP options I choose, also altering some of the derivation pathes.


Segwit was implemented 2017 if I recall correctly, so the wallet must be around 6 years old as one set of addresses starts with 3 (first version of segwit addresses).