Show Filter and Show Schedules buttons are located after the content they invoke in the tab orderDescriptionWhen accessing show Filter, and on sidebar of calendar using keyboard tabbing, the form focus moves first to the panel, then to the toolbar. Steps to Reproduce 1. Start a screen reader (VO is fine).2. Open Manager's Workspace.3. Navigate to either the Show Filter or Show Schedules, as long as its content is not currently displayed4. Select the show button. The user is not notified of the new content, which is behind the user in the tab order.WorkaroundThe user would have to tab through the end of the page, wrap around to the top of the page, and eventually return focus to the new content.Related Problem: PRB1448614