Merged details from 3 or more tabs into common tab

[Citi]

The file have 4 Tabs (see attached file). The tab called staff, project 1 and project 2 are manually entered. I need to combined some of the information contained in the 3 tabs into "assignment" tabs in order to show the staff workload against the projects/tasks assigned to the individual staff.

In "assignment" tab, I would like to get have pull-down function to obtained the Project 1 and Project 2 "Activities" in Cell Column B & C and automatically placed "start" & "finish" date Cell Column D & F onto the assignment tab Cell Column B, D, E & F

In "assignment" tab, the staff assigned to execute the tasks will also be able to obtain by pull-down function obtained from the "staff" tab, the position Column C, Name in Column F, Job in Column E, Start in column H and Finish in column I onto the "assignment" tab Column B, C, D, E & G
The timeline should show automatically the bar based on the start & finish date. The colour for Task and Staff to be different colour.

Thanks

Citi

[Citi]

Dear All,

Any excel expert able to show this is possible in excel ?
Thanks in advance

Citi.