On document templates is there any way to do string functions. 

Example i -  you have a field on page 1 where they enter in city, state & zip - later in the process you have a line for city state zip and you would just like to concat(city, state, zip).  I know you can just repeat the labels, but I am thinking treating them as a single string w/o the extra spaces.

Another example they enter in their name - first, last and later you have a field which is going to be the first 3 characters of the lastname  + the first initial (Ex. first=john, last=doe, computed field is DoeJ)

One more user enters first, last middle - in various locations later on the doc you need NameLastCommaFirst or NameFirstLast

See if there are any tools in docusign or approach to do this

Thanks

Ken