The T470 only puts one DisplayPort signal on the TB3 bus so a TB3 dock expecting two won' t work. An MST hub ( the Ultra dock contains one but you can use whatever cheap MST hub you want with an USB C- to- DP adapter) can drive multiple monitors from a single DP connection.
4K @ 60 Hz uses up 76% of the single DP bandwidth so you have 34% left which is enough for a 1920x1200 @ 60.
Lenovo Zombies free
On Windows 7, 8, and 8. 1, ThinkPad T/ W/ X systems use fingerprint software.
T440 and later models use Lenovo Fingerprint Manager Pro.