Yes, you can use PropertyPaneLabel for that.
groupName: "Custom group",
label: "Enter a custom value"
text: "This is a custom text in PropertyPaneLabel"
You can use PnP SPFx property pane controls in your solution.
They provide callout value for standard property pane controls like button, text, dropdown etc.
To install them, you can do that as below:
npm install @pnp/spfx-property-controls --save --save-exact
After that in your project you can use it as below:
1) add the necessary import ...
Below are the official docs about how to add jquery library to SPFx web part, you may take a reference:
Add an external library to your SharePoint client-side web part
And There is a quick way to add Jquery:
Create a project with jQuery using the ...
Provided that you don't break the compatibility from one version to another, your web parts will update on a site collection by Sir collection basis with very little effort.
When you update your web parts, you should change the package solution number -- I recommend following the [semantic versioning guidelines] (https://semver.org/).
When you ...