How to SuppressBlankLines for mail merge

[sealahu]

Within my mail merge document,
For example, Each account has 1 or more managers(maybe up to 40 managers). The document template is as below <<next record if>> means if the next record is not blank, then add next manager's name)
******************
<<manager>>
<<next record if>> <<manager>>
<<next record if>> <<manager>>
<<next record if>> <<manager>>
<<next record if>> <<manager>>
<<next record if>> <<manager>>
<<next record if>> <<manager>>
<<next record if>> <<manager>>
<<next record if>> <<manager>>
<<next record if>> <<manager>>
<<next record if>> <<manager>>

Thank you..
*****************************

Since some accounts only have 1 manager, How do I suppress the blank lines so there is no big gap to the last sentence 'Thank you..'

 

[sealahu]

Any ideas on this? or I couldn't do this.