[Mobile] Instagram story error

Hey could you guys look into why can’t you schedule a Instagram image as a story (19:6) using the Adobe Express Scheduling tool? An error message states video files should be a certain format… Instagram allows pictures to be shared as stories. Can you please fix and include the option to share a story on Facebook like other platforms do? Finally, why can’t you add a new feature to include unlimited social media accounts… most other scheduling apps or tools offer this functionality… Thanks in advance. Best regards Paul