Probably you will not be having access on your dev. environments.this happens when the author wants to learn development of AEM. but they can access only content folder not apps.if this is the case, then you should first register with the solution partner portal. there you will find a lot of article...

Could you please confirm if you have added this dependency in parents pom and core pom?in core package add a dependency in POM without version and in parent pom with version.Parent POM:<dependency>    <groupId>javax.mail</groupId>    <artifactId>mail</artifactId>    <version>1.4.1</version></depende...

it is something you want to change OOTB function.have you find the lib files?

Can you please check in configMgr. WCM filter. what is the value there?disabled or edit ?

/libs/cq/ui/widgets/source/widgets/wcm/Sidekick.jsthe path itself is saying it's classic ui. try on touch ui clientlib./libs/wcm/core/content/editor - in this path I can see one clientlib is loaded. please check there.~ Prince

you have to populate the fields in dialog or in page?if it is dialog the please go with this article-AEM 6.0 Forms Help | Dynamically populating drop-down listsAdobe Experience Manager Help | Dynamically updating Adobe Experience Manager TouchUI Dialog Select FieldsArticle is for classic ui, somethi...

have you tried a modification of existing clientlib which is being used?

I can see editor.html - /libs/wcm/core/content/editoris nothing but a cq:page. can you please try doing the same thing as we do for our website content pages.Also, sidekick means left rail you are talking about right?and if you already have a clientLib then I would suggest that overlay and modified ...

Can you please try this resolution? AEM 6.3 | MSM Extended | JCR Properties Rollout let me know if you face any issue.~ Prince

is there any clientLibs loading in sidekick in OOTB?just confirming.~ Prince