Thank you Michael.
I have imported my "tree" data from an earlier Silver V4.0b UK version which doesn't work with Windows 8 so had to upgrade to V8.06.
When I go into the "Tag Type List" to add for example, Birth, there are two default sentences that would appear in a generated report. The first is shown as "Sentence" and shows [P] was born <[D]> <[L]>, the second shown as "Witness Sentence" shows [W] witnessed the birth of [P] <and [PO]> <[D]> <[L]>. So I go into the Edit tab and in the Roles and sentences tab there are check boxes for Child, Witness and Principle. I try to un-check the Witness check box but a pop up states "The witness role cannot be disabled". An example of how my reports are generated is below.
Alice Harriett1 ASKEW (1911) witnessed the birth of Alice Harriett ASKEW (1911) on 23 Jan 1885 at Weasenham, Norfolk . She witnessed the marriage of Alice Harriett ASKEW (1911) and Arthur Richard BUCKLE (6788) in 1908 at Mitford District, Norfolk. She witnessed the New Tag of Alice Harriett ASKEW (1911) on 2 Apr 1911 at Low Street, Weasenham St Peter, Norfolk. She witnessed the death of Alice Harriett ASKEW (1911) in 1978 at Wayland District, Norfolk.
I know I could edit each Principles tags individually but I seem unable to change the default "Tag Type List" so that the generated reports sentence would read something like...P was born on 23 Jan 1885 at Weasenham, Norfolk. P married Arthur Richard BUCKLE in 1908 in Weasenham, Norfolk etc. etc.
So I am trying to edit the Default master Tag Type List so that any printed reports don't generate sentences such as P witnessed the birth of P.