Decorus allows you to customize your columns to suite your needs. This can be done in the 'Block', 'Property', 'Tenancy', 'Jobs', 'Contacts', 'Applicants', 'Landlords', 'Suppliers' and 'Diary' module. Either as a one off, by going into the module, clicking 'Select Columns', or by changing the default for each module.
To edit your default Columns, so that they will stay the same each time you log in, go to 'Preferences' and click 'Module Description' -
From here you have the options to select your default columns for each module -
Please be aware that this will change the default columns for all user and not just the user that they are initially altered on.