We should be be able to have the contact manner in which they listed customizable.
Example being I want my contacts within Textra listed alphabetically, last name first just like they are listed in my Galaxy S7 phone's contact list. "Messages" which is the default texting program (I have it disabled since using Textra) on this phone uses the phone's contact list so they are listed the way you want. As if this version Textra still only lets you list the contacts First name first so my family for instance is listed all over the place not grouped together.