How to make number follow text in chapter heading?

I have set up my thesis with each chapter having identical headings as encouraged. OOoHeading0 is what I have use for each chapter title but with outline numbering it places a number before the text ie 1 Chapter 1 or if i change the outline to start numbering with OOoheading1 which is the text title I have a similar problem the Chapter I can rejig with insert field after the word Chapter [insert field; other; documents tab ->chapter (type) chapter number (format)] but then i get the lovely little outline number on the title:

Chapter 1

1 general introduction

so ideally what i would like to see in both the chapter and the ToC is:

Chapter 1

General Introduction

1.1 Introduction to dolphin abundance estimate software

1.1.1 abundance estimates in MARK

1.1.2 abundance estimates in RCAPTURE

i expect I am missing something simple to fix this but have spent bits and pieces of days trying to figure it out :expressionless:
many thanks
judy
PS i did check out the odm supplied by oweng at this link Is there something wrong with the Master Document Implementation? - #12 by oweng
but it does the same thing and puts the number before the text - “1 Chapter one title”

I would use the following settings for outline numbering:

First set all outline levels to:

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then change the level 1 to:

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