Hi, Currently we are working with Blaze v7.6, if we want to move to DM, Do we need to migrate to latest blaze(v7.10.) first and then to DM? or directly to DM? If to DM directly, existing DTs, Other templates can we reuse? OR need to create from scratch?

You do need to move the project to that latest version of Blaze, 7.10, to be able to move it to DM. Once you do so, you can continue to use your existing templates, Decision Modeler should show your project very much the same as you see in the Blaze Advisor RMA. You may still want to consider moving everything to the standard templates, because there is no template editing in DM, so you would need to download your project, change it in Blaze Advisor, and then return it to the cloud to change templates.