With deliberate intention.

Roget 600: voluntary, volitional, willful; free etc. 748; optional; discretional, discretionary; volitient^†, volitive^†.    minded etc. (willing) 602; prepense etc. (predetermined) 611^†; intended etc. 620; autocratic; unbidden etc. (bid) etc. 741; spontaneous; original etc. (casual) 153; unconstrained.    ... meer laten zien