Simple timeline/planning for Jira core issues

[Michel]

Hi,

I have a backlog of tasks that needs to be done in Jira Core. Now I want to create a schedule to know when it could be done. So what I want:

• Enter an amount of hours for each task that it will take
• Specifiy amount of hours per day/week we work
• View a timeline when each task will be handled.

I took a look at these 2 plugins: 
https://www.atlassian.com/software/jira/portfolio 
https://marketplace.atlassian.com/plugins/com.tempoplugin.tempo-planner/cloud/overview

But these seem to be more complicated for what I need, and only work with Jira software. 
Anyone knows a plugin that can do this with Jira Core? 

Thanks!

[White Software]

You can take a look into this -> https://marketplace.atlassian.com/plugins/tr.com.obss.plugin.jira-auto-planner-plugin/server/overview