Currently it's not possible to tab to the Advanced parameters: expander to expand the additional options.
- Autofocus main search field, especially when coming from a submitted search
- Allow tabbing to the Advanced parameters: button
- Figure and fix how to deal with 'search pils' here
- Allow uncollapsing the advanced parameters by keyboard action
Maybe: Change tab order on advanced search fields, so help icons will be selected after the input field selection
Maybe: Allow an additional way to submit the form at the very end
Edit: Tab order task moved to T182125