CAD tip # 10239:

As an example, you can have a dynamic text (e.g. a title block attribute), which displays different contact information depending on the login name of the current user.

The the text field (FIELD) or in a plain Text, enter the following expression (on a single line):

%<\AcDiesel $(if,$(eq,$(getvar,loginname),"Jeff"),"jeff[at]cadstudio.cz",$(if,$(eq,$(getvar,loginname),"John"),"john[at]cadstudio.cz",$(if,$(eq,$(getvar,loginname),"Mary"),"mary[at]cadstudio.cz","cannot detect e-mail address")))>%

Due to the length limit of DIESEL expressions you can also write the tests individually - e.g.:

  
$(if,$(eq,$(getvar,loginname),"John"),"tel. 123456-987")
$(if,$(eq,$(getvar,loginname),"Bob"),"tel. 123456-986")
$(if,$(eq,$(getvar,loginname),"Jenny"),"tel. 123456-985")
$(if,$(eq,$(getvar,loginname),"Stephanie"),"tel. 123456-984")
...