I would like to be able to compare 2 fields where by

if
KEY_ACCOUNT_1
is equal to
KEY_ACCOUNT_2

then it would only display one of them however both Scripting and Dynamic content only compare a field to static text ( the above would compare 123456789 to KEY_ACCOUNT_2 )

below is an example in scripting but i have tried the same in dynamic content

{{#xif 'KEY_ACCOUNT_1==KEY_ACCOUNT_2'}}
Your account number is %%KEY_ACCOUNT_1%%
{{else}}
Your account numbers are %%KEY_ACCOUNT_1%% and %%KEY_ACCOUNT_2%%
{{/xif}}