Yes, the excess PV power share of the minimum charging current can be set individually from 0 - 100% in the portal and in the app. This optimises self-consumption even with low PV system output.
Alternatively, a limit value can also be set. The wallbox then mixes solar and grid power when the excess PV power alone is no longer sufficient for the minimum charging power. The necessary settings for excess PV charging, the function and the energy meter connection can be found in the settings of the respective wallbox in the portal and in the app.