On the Plan or Budget page, you can see a comprehensive list of budgeted items. This includes all expense groups and categories.
You can click into the "Planned" field to edit it at any time, and any remaining money can be "moved" between spending categories.
You can also check your spending Summary on this page to see the month's total Income, Expenses, money allocated to Goals, and the remaining income that has not yet been planned for ("Left to Budget").
Please note: Money cannot be moved in or out of your bank accounts from within Monarch.