How to add custom link or button to task details page to open a different t

Question

Dear All
In HumanTasks Workflow, On task details page, I want to add a custom link or button. Clicking on this link or button, should load a different task details page.
The exact business usecase is like this:
1. We have some human tasks with very detailed payload like about 100 attributes. When the task is submitted for Approval, we send notification emails. These emails shows the Task Details with all these 100 attributes along with standard Approve, Reject buttons etc. NOW in addition to this, we want to add extra custom button/link like Custom View. When we click on this buton or link, it should replace the task details page with the Custom task details page contents. The reason is most of the managers/approvers access their emails on smart phones like iphones. So in these phones, seeing full task details (100 attributes) is very tedious. So we want to provide a simplified view of same task with very minimum attributes like about 10 with Approve, Reject buttons. Now this compact view details will have a button called Detailed View on click on which it loads details page.
So we want to have 2 pages for a task:
taskDetails1.jspx -> Has all 100 attributes with a custom button/link called "Compact View". Click on Compact View switch to below page.
taskCompact1.jspx -> Has only 10 attributes with a custom button/link called "Detailed View". Click on Detailed View switch to above page.
1. I tried implementing this using the VacationRequest sample where the payload is like creator, startdate, enddate, reason. I already have taskDetails1.jspx page, which shows this information in the email body.
2. I want to add another button to taskDetails1.jspx so that when I click on it, I want to load a different page like taskCompact.jspx which has only say creator, reason.
I already added a link and gave the url with parameters like taskId, taskContext etc which I got from bindings, but nothing is displayed when I click on custom button. The taskId, context values are comming correctly in the url.
So bottom line, what is the URL that I can provide in the task details page, to load a different task details page contents. I want to pass other taskdetails jsp details.
Please let me know, if there is any other approach to implement this usecase.
Thanks in advance
Ravi Jegga

Answer 1

Hi,
   I am not sure if you can add your own custom buttons to the application tool bar because your table control is in a sub screen area in a standard screen so the menu area would be controlled by the standard screen and not the subscreen , but along side the table control you can give buttons for scrolling and handle the same in the subscreen if you check the FM EXIT_SAPLMEREQ_002 it has a variable IM_UCOMM which would have the ucomm set in the subscreen so here you can handle your user command to scroll on the table control.
Regards,
Himanshu