is Linked Analysis is possible for Time series chart?

Hello all , is there any ways to change the join type in model that i have created using classical model type and i have joined two tables using one condition now i want to change that !

Is there any way to do joins of table in modeler in sac? 

I'm trying to store all comments that are entered by users in sac analytic application or stories from SAC to sap datasphere table, if there is any option to do that suggest me!