See:
https://support.office.com/en-us/article/Create-a-fillable-form-39A58412-107E-426B-A10B-AC44937E3A9F

http://gregmaxey.com/word_tip_pages/repeating_data.html

See also:

Dependent Dropdown Content Controls
https://www.msofficeforums.com/word-vba/24661-help-cascading-dropdown-list.html#post77762

Hierarchical Dropdown Content Controls
https://www.msofficeforums.com/word-vba/29617-creating-reducing-drop-down-list.html#post94603

Dependent Text Content Controls
https://www.msofficeforums.com/word-vba/16498-multiple-entries-dropdown-lists.html#post46903

Content Control conditional formatting
https://www.msofficeforums.com/word-vba/16505-change-color-according-dropdown-selection.html#post47254

Dropdown Content Control Population from Excel
https://www.msofficeforums.com/word-vba/16330-how-import-list-excel-into-drop-down.html#post46287

Creating Performance Assessments with Content Controls
https://www.msofficeforums.com/word-tables/12335-assigning-values-content-control-checkboxes-calculating-results.html#post33489

Adding Table Rows with Content Controls
https://www.msofficeforums.com/word-vba/27809-code-add-new-row-table.html#post87989
https://www.msofficeforums.com/word-vba/13955-macro-add-row-table-word-form.html#post38461

Replicating data in a form:
http://gregmaxey.com/word_tip_pages/repeating_data.html

Populating document bookmarks from a userform
https://www.msofficeforums.com/word-vba/24282-form-updating-bookmarks-writes-bookmarks-multiple-times.html#post76386

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]