[Placeholder] and math?

[sebbe90]

Version

1.2.9

Operating system type + version

Windows 7

Behavior

At the moment I try to implement for our Hyrel Multi Head printer a custom tool change code. Therefore I need to add explicit "T1" (with values 1 2 3 4) to use extruder 1 for the new tool. If I use [next_extruder] or [current_extruder] the counting begins with zero, so in principal it is possible, but the numbers are one digit to low. Is there a possibility to simply add a one so something like "T[next_extruder]+1".

Regards.

[lordofhyphens]

Duplicate of #3390 and #2407