Are you talking about converting crafting materials?
Yes, you can automate this using DemonBuddy.
Main Window > Plugin tab > select Trinity > click Config button
Choose the Items tab > Kanai's Cube tab > look for the CONVERT CRAFTING MATERIAL'S section
"During a town run Trinity can convert non-legendary items into crating materials.
When you have less than the amount selected below, the bot will start creating more of it,
consuming your highest [quantity] crafting material in the process."
Keep in mind some simple math when you set the slider: (Y+B+W)/3=where to set the slider
(Yellow + Blue + White) divided by three will equal the average quantity.
If your material counts looked like this:
[TABLE="width: 300, align: center"]
[TR]
[TD]Yellow [Veiled Crystal][/TD]
[TD="align: center"]15000[/TD]
[/TR]
[TR]
[TD]Blue [Arcane Dust][/TD]
[TD="align: center"]15000[/TD]
[/TR]
[TR]
[TD]White [Reusable Parts][/TD]
[TD="align: center"]6000[/TD]
[/TR]
[/TABLE]
15000+15000+6000=36000
36000/3=12000
I would select "Reusable Parts" and then the slider to about 12000.
However, you do not want to set it significantly higher then your middle material
[TABLE="width: 300, align: center"]
[TR]
[TD="align: left"]Yellow [Veiled Crystal][/TD]
[TD]14000[/TD]
[/TR]
[TR]
[TD="align: left"]Blue [Arcane Dust][/TD]
[TD]7000[/TD]
[/TR]
[TR]
[TD="align: left"]White [Reusable Parts][/TD]
[TD]1000[/TD]
[/TR]
[/TABLE]
22000/3=~7300
I would select "Reusable Parts" and then the slider to 7000 [Amount of Blue material].
If you set it to 7300, you would end up with 6850 Yellow and Blue.
Need both Blue and White materials?[TABLE="width: 300, align: center"]
[TR]
[TD="align: left"]Yellow [Veiled Crystal][/TD]
[TD]30000[/TD]
[/TR]
[TR]
[TD="align: left"]Blue [Arcane Dust][/TD]
[TD]4000[/TD]
[/TR]
[TR]
[TD="align: left"]White [Reusable Parts][/TD]
[TD]2000[/TD]
[/TR]
[/TABLE]
36000/3=12000
I would select both Blue and White crafting materials for conversion
Set the slider to 12000.
Remember to pay attention when using your materials and re-apply the formula or turn the conversion off, otherwise you might end up with 0 of a non-selected crafting material.
Example: Conversion set to 12000, you have used enough materials to where they are all around 6000, then you will eventually end up with 0 yellow and 9000 blue and white.
You can also increase your white count item pickup by turning on "Weapon Racks" in the object settings.