# Simple XML layout changes for fields
## Where to make changes
Blocks are defined via numerous different XML layout files (so: layout handles). While it is possible to add all of your
changes to a single `loki_checkout.xml` file, we recommended you to add your own
## Changing the field label
Every field has its own label and form element. Most of the fields are based on EAV attributes of the entity
`customer_address`. The field label is based on the label of the EAV attribute, but you can override this in XML layout:
File `loki_checkout_block_shipping_address.xml`:
```xml{6}
Surname
```
## Changing the placeholder text
The HTML attribute `placeholder` is added to the PHTML field template by using the `ComponentViewModel` method (
`getPlaceholder()`) which again borrows the value from the block argument (`getPlaceholder()`). This means
that you can simply set the placeholder via the XML layout:
```xml
Your postcode
```
However, you might also want to override the `getPlaceholder()` method of the `ComponentViewModel` to allow for changing
the behaviour.
More docs coming soon