Some users may prefer that all clusters are shown at once, even without clicking the "all clusters" link. To support such users the cluster list could behave in the following way: after the user clicks the "all clusters" (CARROT-20) link, at the bottom of the cluster list another link appears (e.g. "always show all clusters"). After the user clicks that link, for all further searches all clusters will appear right away. When immediate showing of all clusters is enabled, at the bottom of the cluster list another link should be visible (e.g. "don't show all clusters right away"), which the user can click to restore the original behaviour (i.e. showinc clusters in groups).