Add a assistant for schedule patterns

[neopholus]

Is your feature request related to a problem? Please describe. I'm always frustrated when I want to add a schedule and have to look up how the pattern must be used. In the Javascript adapter of iobroker, there is an assistant integrated to ease the creation and adaption of schedule patterns.

Example: schedule('25 1 * * *', async function () {...

Describe the solution you'd like Could you please implement some support for the schedule patterns? In iobroker it is an assistant loking like this (for example):

You can activate it by pressing the clock symbol:

Describe alternatives you've considered Currently, I use the assisstant provided by iobroker, which is cumbersome.