SandyMae, the paragraph you mention is just about the spousal. Unless you ask for, say, a nominal £1 so that you could potentially go back and ask for more in future (provided that there is a good reason you need it) then a clean break in spousal means you can not. Courts do not really like awarding spousal unless there is a really good reason to do so. A larger share of the assets is more the norm for the lower paid breadwinner
As for the rest of the assets, there should be a paragraph in the consent order stating something similar to: Save as aforesaid (being all the other stuff like house split, pension etc) neither you or he can be entitled to or make any further application in relation to the marriage pursuant to Section 23 (1) etc etc etc.
Then there should be a paragraph saying neither of you will be entitled to any claim on any inheritance if either of you die
Re child maintenance, this is a separate issue, and although can be included in the CO, it then can be changed after 1 year, either by him paying less (or more if he wants!!!) or you going to CMS
I actually had written into mine that child maintenance was paid until my DD completed university (1st degree course). however children can make their own claim for maintenance from the non resident parent before starting uni.
As has been said above, you should get any CO you sign properly checked over first. I self repped through court - and got advice from MN - including babybarrister - also from wikivorce. I think because my judge realised how much I was being pratted around, once we had agreed the CO at FDR she made my ex's solicitor write it up there and then, checked it, and asked when she could have the typed up copy to rubber stamp (she got it the following day). Had this not have happened, I would have shown it to a solicitor first. She also, with my permission, sorted the decree absolute at the same time