ROS v7 - Route List - set gateway after update from v6

Hi. Today I upgrade to v7. I am correcting entries in Route. I have a problem with setting the gateway for the interface (vlan) where the gate is dynamic - LTE. How can I fix it? To be interesting, the entry, despite the error marked in red, works correctly but cannot be edited.
Bez tytułu.png

@ is used to reference routing table
% is used to reference interface, do not use these symbols in interface names otherwise you will not be able to set gateways correctly.

Uff Thanks!