How to Change the Reference Designator for a Type of Schematic Symbol?

[marco_kicad]

HI,
i want to use the command under Tools==> Symbol Library Refrence, for change the reference of one series of components in my schematic.
But i don’u undertand how use this, and i fear to create disaster in library.
For example i want change all J1… in CN1…-
Who explain me how?

KiCad 5

Thanks

[Rene_Poschl]

This is the wrong tool for that. The library reference does something else. (It determines which symbol to use from what library.)

I fear there is not really a tool that can do what you want.

[nhatkhai]

Only use text editor search and replace with regex may help. Notepad++, or in extream vim.

[Sprig]

@marco_kicad

But i don’u undertand how use this, and i fear to create disaster in library.

Using the Schematic Editor, open the symbol for editing. If the symbol is already placed then hovering the cursor over the symbol and pressing “Ctrl+e” will open the symbol for editiding.

Duplicate the symbol, and save it to a new custom library of your choosing. You will have to add this new library to the Symbol Libraries list. By doing this, any update of KiCad will not affect the project with these custom symbols.