The first step is to click the "Edit columns" button (option 1 on the first image in this tutorial).

how to Add/Delete/Rearrange Columns in Dynamics 365 Personal View

A right sidebar will be automatically opened, and a list of currently present columns will be displayed there.

Since we previously decided to exclude the Business Phone column, position the cursor over the Business Phone row in the sidebar on the right, then click on the three dots icon, and choose the Remove option.

how to Add/Delete/Rearrange Columns in Dynamics 365 Personal View

As a result, this option will automatically disappear from the column list.

how to Add/Delete/Rearrange Columns in Dynamics 365 Personal View

Now, let's add a Mobile Phone column to the view.
We must click the "+Add columns" button (5) just above the column list to do this.

how to Add/Delete/Rearrange Columns in Dynamics 365 Personal View

After that, a list with all the available fields from the Contact entity will be displayed in the right sidebar (except those already added to the view).
Please note that a Contact tab (6) is selected by default because it is the entity we currently work with.

how to Add/Delete/Rearrange Columns in Dynamics 365 Personal View

If you want to avoid scrolling through all the fields looking for the necessary one, use the search bar at the top (7) and enter part of the required field name to limit the available results.

how to Add/Delete/Rearrange Columns in Dynamics 365 Personal View

Select the Mobile phone field and prepare for it to disappear automatically. This isn't an error; it indicates that the field has been effectively included in the current view's column list.

Now it's time to add an "Address 1: State/Province" field from the related Account entity.

To do that:

1. Switch to the Related tab (8).
2. Enter a part of the required field name in the search bar (9).
3. Expand the related Account entity (10).
4. Click on the "Address 1: State/Province" field.
5. Click on the Close button (11).

how to Add/Delete/Rearrange Columns in Dynamics 365 Personal View

You will be automatically redirected to the initial sidebar, but this time, two new columns are added at the bottom of the list.

how to Add/Delete/Rearrange Columns in Dynamics 365 Personal View

You can rearrange these columns by dragging and dropping them to make this view look more logical. After rearranging, click the Apply button (12) in the bottom right corner.

how to Add/Delete/Rearrange Columns in Dynamics 365 Personal View

This action will close the right sidebar and refresh the view to reflect all the applied changes.

how to Add/Delete/Rearrange Columns in Dynamics 365 Personal View

That's it. You did it.