Currently, you can Ctrl+LMB-Drag over assemblers to replace modules with the higher tiers, but you can't do so with higher-quality.
See also:
https://lua-api.factorio.com/latest/pro ... .html#tier
[2.0.13] Modules of higher quality not automatically replacing lower quality when inserted in assember
[2.0.13] Modules of higher quality not automatically replacing lower quality when inserted in assember
Fulgora is the best planet. Vulcanus needs rework. Feel free to prove me wrong.
Re: [2.0.13] Modules of higher quality not automatically replacing lower quality when inserted in assember
Looks to be fixed in 2.0.14
Fulgora is the best planet. Vulcanus needs rework. Feel free to prove me wrong.