The calculated fields in the Data Sheets
Do some tests and question Ulukyn/kervala on the topic 
Calculations(addition, subtraction, multiplication, division) can be performed based on other values that are called by their respective fields:
Example: 0.5 * “(ex: rcdsdfn_item_ammo#medium_range_limit | ammunitions]]) indicates to multiply the field long range limit of the section ammo'' by 0.5
| Possible values | Explanation | Example |
|---|---|---|
| $ filename | Allows you to use the specified number in the filename suffix. | $ Filename in a file named myfile 04 will therefore return the value 04. |
| abs () | Returns the absolute value of the calculation. | With field = -4, abs (field) will therefore return value 4. |