It's all in the title. If I define 2 e-paper displays, and if I'll never have them working at the same time (meaning I will wait until one has finished its work before to use the other), can I share the same RST pin on both?
See GxEPD2_MultiDisplayExample and GxEPD2_GFX_MultiDisplayExample
and Waveshare e-paper displays with SPI - #232 by ZinggJM - Displays - Arduino Forum
It works now, thanks Jean Marc