DevExpress ASP.NET Core Website Project

I need a developer, fluent in DevExpress ASP.NET Core controls. I have the two primary tasks remaining in this project that I need assistance with code: DevExpress Pop-up Form: I have a button that can reach out to Google Geocode API that will get lat/long info. I need to populate it on a pop-up form. I cannot figure out how to access the two textbox fields to fill this information in. I need a DevExtreme developer to either show me how to access these fields in javascript or update my current project once job has been commissioned and access given. DevExpress RichEdit Mail Merge: This is a slightly larger project. I need the developer to populate a mail merge datasource from a DevExtreme ASP.Net Core Data Grid's selected records. 2a. The user will create a mail merge template. I need a developer to develop code to save the document to the database. 2b. User will assign saved templates to destination records. I need a developer to email merged data to recipients. Receipts are destination contacts which will have to be obtained via query. The code will use a datebox for the date parameter, selected rows from a datagrid and a dropdown button with two options: Preview Quotes - I need a developer to develop a pop-up form that will use a richedit control to display the merged information based upon the above selected parameters. Send Quotes - I need a developer to develop a method that will send an email using the merge document saved to the destination record, the contacts for that destination and a quote information based upon the date parameter selected by the user above. The merge data will be selected rows from a datagrid. Current State: Project is complete except for these last two items. The developer may be called upon from time to time after this project for similar last mile work.