How to customize Outlook’s Today page/form?

This method will guide you to customize the Outlook Today page in Outlook. Please do as follows:

1. In the "Mail" view, click the default email account on the "Navigation Pane", and then click "Customize Outlook Today". See screenshot:

2. Now the Customize Outlook Today page is opening, and you can change the page content, layout, style, etc. as you need:

(1) In the "Calendar" section, specify the total number of days you will show calendar items within. For example, show all calendar items in the next 7 days.
(2) In the "Tasks" section, specify to show all tasks or just today’s tasks, and specify the sorting pattern.
(3) In the "Messages" section, specify the folders you will show in the Today page;
(4) In the "Styles" section, specify the page styles from the "Show Outlook Today in this style" drop-down list, such as "Winter".

3. After changing the settings, click "Save Changes" at the upper-right corner of Customize Outlook Today page. See screenshot above.

So far, you have customized and saved the Outlook Today page. See screenshot below:

Add a drop down list with custom field in Outlook task window

Export with custom fields in Outlook