Aside from the controversial programme for crisis countries? The ECB is not forbidden from purchasing government bonds per se. A large-scale purchase of securities – whether issued by the government or the private sector – would only be considered in the event of exceptional risk. And this is really not something that I can see at the moment.
These are •  first, “setting up and maintaining up-to-date webpages for the public”, with the indicator being the “number of website visits”, and  •  second, “holding an open day”, with the indicator being an “evaluation of the open day” – for example by analysing visitor numbers, evaluating the media response or interviewing visitors.