I'm sorry. It is not clear what you are asking.
Are you asking whether you can use several different prefixes?
"Eva let's go"
"Eva MU let's go"
"Eva MUMUMU let's go"
Answer: Yes. In "Options"
separate each prefix phrase with a commaOr:
Are you asking how you can always remove the complete prefix phrase from {LastSpoken} if you have several prefixes such as "Eva" or "Eva MU" or "Eva MUMUMU"?
Answer, yes, but it requires special
"regular expression" (regex) syntax. It will depend on what your prefix phrases are.
This command will strip away "Eva", or "Eva MU", or "Eva MUMU", or "Eva MUMUMU" at the beginning of a sentence:
<?xml version="1.0" encoding="utf-16"?>
<!--VoxCommando 2.1.4.5-->
<command id="656" name="Delete various prefix phrases" enabled="true" alwaysOn="False" confirm="False" requiredConfidence="0" loop="False" loopDelay="0" loopMax="0" description="">
<action>
<cmdType>Results.SetLastResult</cmdType>
<params>
<param>Eva MUMUMU how are you</param>
</params>
<cmdRepeat>1</cmdRepeat>
</action>
<action>
<cmdType>Results.SetLastResult</cmdType>
<params>
<param>Eva how are you</param>
</params>
<cmdRepeat>0</cmdRepeat>
</action>
<action>
<cmdType>Results.SetLastResult</cmdType>
<params>
<param>Eva MU how are you</param>
</params>
<cmdRepeat>0</cmdRepeat>
</action>
<action>
<cmdType>Results.RegExReplace</cmdType>
<params>
<param>^Eva.(MU){0,3}</param>
</params>
<cmdRepeat>1</cmdRepeat>
</action>
<action>
<cmdType>OSD.ShowText</cmdType>
<params>
<param>{LastResult}</param>
</params>
<cmdRepeat>1</cmdRepeat>
</action>
</command>