I want to plan at Top-Down Planning and Middle out planning

Hello Guys,

We have hierarchy like below:

Node(Entity)--->Level 1---->Level 2----->Level 3.

User wants to plan at Node level and this amount should need to be distributed to all base level.

And also user wants to plan at middle level and value should need to be distributed up to leaf level.

Can guys please help me out,How can i achieve this requirement.

If it is through BADi,Please share the code as well. Thanks in advance!!

Regards,

Viswanath