In the master view in PowerPoint you can edit the Slide Master.
A corporate event is an event organised by a company and intended for employees, stakeholders, customers, a charity event or public. The audience depends on the goal of the event.
Slide Sorter view
The Slide Sorter view in PowerPoint shows thumbnails of all your slides in horizontal rows.The view is useful for applying global changes to several slides at once. Also it's useful for deleting and rearranging slides.
In a concept presentation, you have to give general information as well as try to convince the audience with good arguments and deliver a solution concept.