Hostname is not in center under "Host" and get cut off like in the picture.
How can I change this?
The Host column would usually display the name of the Physical Host that the given Virtual Machine is hosted on. In your case, it's shown as blank as no host information is available.
See this screenshot with host information for an example:
Ok thanks, but it would be nice to be able to make customization of the Dynamic Table.
Will now dig in to why my Physical host is not showing up.
The Host column is based on the HostServerName property of the Windows Computer class - if it’s showing up as blank that means SCOM isn’t currently discovering that information. You may be missing a management pack, or monitoring isn’t configured correctly for one of your hypervisors.