Is it possible to ignore the number of patients/y for the analysis? For example, if I buy a new machine and I want to analyze the risks related to different options offered in tenders
Yes, it is possible. There are two options.
Ignore the "event rate" metric: select the OxD option in the acceptance criteria, so that the traffic lights will be not based on event rate. In this case you do not need to care about R and F values.
Adapt the "event rate" metric to your situation. If for instance you are evaluating the process of "acquiring a new LINAC", which is repeated on the average every 5y, you may want to use "1/decade" instead "patients/y". You can change the "patient/y" label into something else by editing the language file. How can I edit or create language files of myQA PROactive?