Is it possible to clear rating directly via keybind

[v-Nyo]

Like this

            "r":          Rate(kind: Modal(values: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10], custom: true, like: false), current: true, min_rating: 1, max_rating: 10),
            "r1":         Rate(kind: Value(1), current: true),
            "r2":         Rate(kind: Value(2), current: true),
            "r3":         Rate(kind: Value(3), current: true),
            "r4":         Rate(kind: Value(4), current: true),
            "r5":         Rate(kind: Value(5), current: true),
            "r6":         Rate(kind: Value(6), current: true),
            "r7":         Rate(kind: Value(7), current: true),
            "r8":         Rate(kind: Value(8), current: true),
            "r9":         Rate(kind: Value(9), current: true),
            "r0":         Rate(kind: Value(10), current: true),
            // "rc":         Rate(kind: Value(-), current: true), // TODO clear value

[mierak]

now it is #882