You probably cannot, the way you are trying to do it. Best is to use Set Variable & Set Field script steps.
Set Field [ VL3000FIX1::Blank Field ; VL3000FIX1::Enter & " " & VL3000FIX1::Techs ]
But why would you need a script to copy data from two fields to a third in the same record?
Blank Field could be configured as either a calculation field or a text field with an auto-enter calculation that uses
enter & " " & Techs
to produce the same result without scripting
Why not to use copy and paste in a script:
Copy replaces any data the user may have previously copied to the system clipboard with data copied by the script step. This irritates and confuses users when their copied data goes "missing" after they run a FileMaker script that uses copy.
copy, paste and insert all silently fail to work when the referenced field is not physically present on the current layout. Thus, future layout changes can "break" a script that uses them and the only way you know that the script now fails is when if doesn't produce expected results.
When Setting up Set Field, there are two Specify buttons that must be clicked. To get Set Field [Table::Field ; Expression], add set field to your script and click the first button (specify target field). Select Table::Field from the list of fields. Do not click the specify button next to the repetition box. Click OK to close this dialog box. Now click the lower specify button (calculated result) and create the expression to the right of the semicolon (;). Do not try to type in the semicolon.
WOW!! Phil, Thanks buddy that worked amazing! I am still trying to hobble through this so something so simple for you is mind blowing to me. Thanks I really appreciate the help this is going to make this project I am doing a whole lot easier!