Powershell Connector ListingCommand

Is there any way to import objects using the Powershell connector with just the ListingCommand and not the full CommandSequence? The API I am connecting to have one command to list all data from all users and one command to list all data from a specific user. During synchronization with the code below, I am first opening a connection to get a list of all the users, then one connection for each users to import all the data. With several thousand users this is causing a lot of unnecessary connections if there is a way to collect all the data by only using the Get-AllUsers command.

<Schema>
    <!--
    Definition of a schema class 'user'
    -->
    <Class Name="User">
        <Properties>           
            <!-- ID -->
            <Property Name="ID" DataType="String" IsUniqueKey="true" IsMandatory="true" IsAutoFill="true">
                <ReturnBindings>
                    <Bind CommandResultOf="Get-AllUsers" Path="id" />
                    <Bind CommandResultOf="Get-UserById" Path="id" />
                    <Bind CommandResultOf="New-User" Path="id" />
                </ReturnBindings>
                <CommandMappings>
                    <Map ToCommand="Get-UserById" Parameter="userID"/>
                    <Map ToCommand="Update-UserById" Parameter="userID"/>
                    <Map ToCommand="Remove-UserById" Parameter="userID"/>
                    <Map ToCommand="Enable-UserById" Parameter="userID"/>
                </CommandMappings>
            </Property>
            
            <!-- email -->
            <Property Name="Email" DataType="String" IsDisplay="true" IsMandatory="true" IsUniqueKey="true">
                <ReturnBindings>
                    <Bind CommandResultOf="Get-AllUsers" Path="email" />
                    <Bind CommandResultOf="Get-UserById" Path="email" />
                </ReturnBindings> 
                <CommandMappings>
                    <Map ToCommand="New-User" Parameter="email"/>
                    <Map ToCommand="Update-UserById" Parameter="email"/>
                </CommandMappings>                                                             
                <ModifiedBy>
                    <ModBy Command="New-User" />
                    <ModBy Command="Update-UserById" />
                </ModifiedBy>
            </Property>
            
            <!-- Several other properties -->
                        
        </Properties>

        <ReadConfiguration>
            <ListingCommand Command="Get-AllUsers">
            </ListingCommand>
            <CommandSequence>
                <Item Command="Get-UserById" Order="1" >
                </Item>
            </CommandSequence>
        </ReadConfiguration>

        
        <MethodConfiguration>
            <!--Insert, Update, Delete-->
        </MethodConfiguration>
    </Class>
</Schema>

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