Option for Assign append to escape automatically in DTL editor

Sometimes it seems in DTLs the asign operators are poor at escaping hl7.

i.e. one comment we had was

<comment><![CDATA[* T & B subsets reflexed due to abnormal proportions of]]></comment>

calling assign like the below as an append doesn't deal with the & sysblol and instead put the code after the & in .1.2 rather than .1.

append

Source

source.reportSet.(k1).setComment.(k5).comment

value

target.{PIDgrpgrp(k1).ORCgrp(b+1).OBXgrp(1).OBX:ObservationValue(1)}

source.reportSet.(k1).setComment.(k5).comment

A check box to force escaping on assignments to the field would be nice or it being more friendly than having to extra escape the sequence