As one chooses or pleases.

Roget 600: voluntarily etc. adj.; at will, at pleasure; a volonte [Fr.], a discretion; al piacere [It]; ad libitum, ad arbitrium [Lat.]; as one thinks proper, as it seems good to; a beneplacito [It].    of one's won accord, of one's own free will; proprio motu [Lat.], suo motu [Lat.], ex meromotu [Lat.]; out of one's won head; by choice etc. 609; purposely etc. (intentionally) 620; deliberately etc. 611.    ... show more