Android app modification needed

1 add Offers and Packages Button with enable disable option in home page From Clinic and categories Page options is required to enable/disable display in home page button or not Schedule offer and subscription notifications to send Start Date and Time End Date and Time 2 doctor and packages appointmnet time schedule to be postponed by given time period 3 Business timing Break slot to be added with breat active and de active option . 4 option to call phone number when click on book appointmnet,