active see code for Signature

[carzamora]

Hi, I think this plugin could active the option for see the code in the Signature field (Workflow Settings > Emails), for example to ad a line (hr), or use a
instead of

[NateWr]

Good idea @carzamora! Would you be able to provide a pull request that implemented this change?

[carzamora]

sorry I am a biologist and journal editor with just a little knowledge in vanilla PHP

[NateWr]

No worries! I will put it on the list.